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SBE 19plus
SEACAT Profiler
Conductivity, Temperature, and Pressure Recorder
with RS-232 Interface
User’s Manual
Sea-Bird Electronics, Inc.
1808 136th Place NE
Bellevue, Washington 98005 USA
Telephone: 425/643-9866
Fax: 425/643-9954
E-mail: [email protected]
Website: www.seabird.com
Manual Version #017, 12/21/07
Firmware Version 1.6b and later
SEASAVE V7 Version 7.16 and later
Limited Liability Statement
Extreme care should be exercised when using or servicing this equipment. It should be used or serviced
only by personnel with knowledge of and training in the use and maintenance of oceanographic
electronic equipment.
SEA-BIRD ELECTRONICS, INC. disclaims all product liability risks arising from the use or servicing
of this system. SEA-BIRD ELECTRONICS, INC. has no way of controlling the use of this equipment
or of choosing the personnel to operate it, and therefore cannot take steps to comply with laws
pertaining to product liability, including laws which impose a duty to warn the user of any dangers
involved in operating this equipment. Therefore, acceptance of this system by the customer shall be
conclusively deemed to include a covenant by the customer to defend, indemnify, and hold SEA-BIRD
ELECTRONICS, INC. harmless from all product liability claims arising from the use or servicing of
this system.
2
Table of Contents
Table of Contents
Section 1: Introduction ........................................................................ 5
About this Manual .............................................................................................5
How to Contact Sea-Bird ...................................................................................5
Quick Start .........................................................................................................5
Unpacking SBE 19plus ......................................................................................6
Section 2: Description of SBE 19plus ................................................. 7
System Description ............................................................................................7
Specifications...................................................................................................11
Dimensions and End Cap Connectors..............................................................13
Batteries ...........................................................................................................14
Battery Endurance............................................................................................14
External Power.................................................................................................16
Data Storage.....................................................................................................18
Data I/O ...........................................................................................................18
Magnetic Reed Switch .....................................................................................18
Configuration Options and Plumbing ..............................................................19
Vertical Mount..........................................................................................19
Horizontal Mount......................................................................................22
Section 3: Power and Communications Test ................................... 23
Software Installation ........................................................................................23
Test Setup ........................................................................................................23
Test ..................................................................................................................24
Section 4: Deploying and Operating SBE 19plus ............................ 28
Sampling Modes ..............................................................................................28
Profiling Mode..........................................................................................29
Moored Mode ...........................................................................................30
Pump Operation - General ...............................................................................31
Pump Operation - Profiling Mode ...................................................................31
Pump Operation - Moored Mode .....................................................................32
Real-Time Setup ..............................................................................................34
Baud Rate and Cable Length ....................................................................34
Real-Time Data Acquisition .....................................................................35
Timeout Description ........................................................................................36
Command Descriptions....................................................................................36
Data Output Formats........................................................................................51
OutputFormat=0 (raw frequencies and voltages in Hex)..........................51
OutputFormat=1 (engineering units in Hex).............................................52
OutputFormat=2 (raw frequencies and voltages in decimal) ....................53
OutputFormat=3 (engineering units in decimal).......................................54
OutputFormat=4 (pressure and scan number in Hex) ...............................55
Optimizing Data Quality for Profiling Applications........................................56
Installing Anti-Foul Fittings for Moored Applications ....................................58
Setup for Deployment ......................................................................................60
Deployment......................................................................................................61
Acquiring Real-Time Data with SEASAVE....................................................62
Verifying Contents of .con File ................................................................62
Acquiring Real-Time Data........................................................................63
Recovery ..........................................................................................................65
Physical Handling.....................................................................................65
Uploading Data.........................................................................................66
Processing Data Using SBE Data Processing ..................................................69
Verifying Contents of Configuration (.con) File ......................................69
Editing Raw Data File......................................................................................71
3
Table of Contents
Section 5: Routine Maintenance and Calibration ........................... 72
Corrosion Precautions......................................................................................72
Connector Mating and Maintenance ................................................................72
Plumbing Maintenance ....................................................................................73
Replacing / Recharging Batteries.....................................................................74
Conductivity Cell Maintenance .......................................................................78
Pressure Sensor Maintenance ..........................................................................78
Pump Maintenance ..........................................................................................78
Replacing Anti-Foulant Devices (SBE 16plus, SBE 19plus)...........................79
Sensor Calibration............................................................................................80
Section 6: Troubleshooting................................................................ 82
Problem 1: Unable to Communicate ................................................................82
Problem 2: No Data Recorded .........................................................................82
Problem 3: Nonsense or Unreasonable Data....................................................83
Problem 4: Program Corrupted ........................................................................83
Glossary .............................................................................................. 84
Appendix I: Functional Description and Circuitry........................ 85
Sensors.............................................................................................................85
Sensor Interface ...............................................................................................85
Real-Time Clock..............................................................................................85
Battery Wiring .................................................................................................86
Appendix II: Electronics Disassembly/Reassembly ....................... 87
Appendix III: Command Summary ................................................. 88
Appendix IV: AF24173 Anti-Foulant Device .................................. 91
Appendix V: Replacement Parts ...................................................... 95
Index.................................................................................................... 98
4
Section 1: Introduction
Section 1: Introduction
This section includes contact information, Quick Start procedure, and photos
of a standard SBE 19plus shipment.
About this Manual
This manual is to be used with the SBE 19plus SEACAT Profiler
Conductivity, Temperature, and Pressure Recorder.
It is organized to guide the user from installation through operation and data
collection. We have included detailed specifications, command descriptions,
maintenance and calibration information, and helpful notes throughout
the manual.
Sea-Bird welcomes suggestions for new features and enhancements of our
products and/or documentation. Please e-mail any comments or suggestions to
[email protected].
How to Contact Sea-Bird
Sea-Bird Electronics, Inc.
1808 136th Place Northeast
Bellevue, Washington 98005 USA
Telephone: 425-643-9866
E-mail:
[email protected]
Fax:
425-643-9954
Website: http://www.seabird.com
Business hours:
Monday-Friday, 0800 to 1700 Pacific Standard Time
(1600 to 0100 Universal Time)
Except from April to October, when we are on summer time
(1500 to 0000 Universal Time)
Quick Start
Follow these steps to get a Quick Start using the SBE 19plus.
The manual provides step-by-step details for performing each task:
1.
Install batteries and test power and communications (see Section 3: Power
and Communications Test).
2.
Deploy the 19plus (see Section 4: Deploying and Operating SBE 19plus):
A. Install new batteries if necessary.
B. Ensure all data has been uploaded, and then send InitLogging to
make entire memory available for recording if desired.
C. Set date and then time and establish setup and logging parameters.
D. Moored mode - Set 19plus to start logging now or in the future.
E. Install dummy plugs and/or cable connectors, and locking sleeves.
F. If applicable, remove Tygon tubing that was looped end-to-end
around conductivity cell for storage. Reconnect tubing from pump to
conductivity cell.
G. Profiling mode - Put magnetic switch in On position, send
commands to start logging now or in the future, or apply external
power, as appropriate for your instrument’s setup.
H. Deploy 19plus.
5
Section 1: Introduction
Unpacking SBE 19plus
Shown below is a typical SBE 19plus shipment.
SBE 19plus SEACAT with SBE 5M plastic pump
25-pin to 9-pin adapter
(for use with computer
with DB-25 connector)
I/O Cable
2-pin dummy plug
and locking sleeve
Conductivity cell cleaning
solution (Triton-X)
Spare o-ring and
hardware kit
Conductivity cell filling
and storage kit
SBE 19plus SEACAT
Software, and Electronic Copies of
Software Manuals and User Manual
SBE 19plus Manual
6
Section 2: Description of SBE 19plus
Section 2: Description of SBE 19plus
This section describes the functions and features of the SBE 19plus SEACAT
Profiler, including:
• system description and auxiliary equipment
• specifications
• dimensions and end cap connectors
• batteries and battery endurance
• external power and cable length limitations
• data storage
• communication settings
• magnetic reed switch
• configuration options and plumbing
System Description
The SBE 19plus SEACAT Profiler is designed to measure conductivity,
temperature, and pressure in marine or fresh-water environments at depths up
to 7000 meters (22,900 feet). The 19plus operates in two modes:
• Profiling mode for acquiring vertical profiles of parameters. The 19plus
runs continuously, sampling at four scans per second (4 Hz). It can be set
to average up to 32,767 samples, storing and transmitting only the
averaged data.
• Moored mode for acquiring time series measurements once every
10 seconds to once every 4 hours, adjustable in 1-second increments.
Between samples, the 19plus powers down, drawing only 30 microamps.
Self-powered and self-contained, the 19plus features the proven Sea-Bird
conductivity and temperature sensors and a precision, semiconductor, straingauge pressure sensor. Nine D-size alkaline batteries provide 60 hours
operation in Profiling mode; the 8 Mbyte FLASH RAM records 50 hours of
conductivity, temperature, and pressure data while sampling at four scans per
second (other configurations/setups vary). The 19plus three-wire RS-232C
interface provides simultaneous, real-time monitoring. User-selectable output
format is raw data or engineering units, in hexadecimal or decimal form.
Setup, diagnostics, and data extraction are performed without opening the
housing. The 19plus can power and acquire the outputs of external sensors.
Logging is started by sliding the On/Off switch, by command via the RS-232
interface, or by applying external power, depending on your instrument setup.
A standard 19plus is supplied with:
• Plastic housing for depths to 600 meters (1950 feet)
• Strain-gauge pressure sensor
• 8 Mbyte FLASH RAM memory
• 9 D-size alkaline batteries (Duracell MN1300, LR20)
• Impulse glass-reinforced epoxy bulkhead connectors: one 4-pin I/O
connector; one 2-pin pump connector; and two 6-pin connectors (for two
differential auxiliary A/D inputs each)
• T-C Duct, which ensures that Temperature and Conductivity
measurements are made on the same parcel of water
• SBE 5M miniature pump (with plastic housing for depths to 600 meters)
for pumped conductivity; by fixing the flow to a constant rate, the pump
ensures a constant conductivity time response. The T-C duct and pump
combination results in dramatically lower salinity spiking.
7
Section 2: Description of SBE 19plus
SBE 19plus options / accessories include:
• Titanium housing for use to 7000 meters (22,900 feet)
• SBE 5M miniature pump with titanium housing in place of plastic housing
• SBE 5P (plastic) or 5T (titanium) pump in place of SBE 5M for use with
dissolved oxygen and/or other pumped auxiliary sensors
• Sensors for dissolved oxygen, pH (Profiling mode only), fluorescence,
light (PAR), light transmission, and turbidity
• Bulkhead connector for use with PAR sensor
• Stainless steel cage
• Wet-pluggable (MCBH) connectors in place of standard connectors
• Nickel Metal Hydride (NiMH) batteries and charger
• Nickel Cadmium (Ni-Cad) batteries and charger
• Moored mode conversion kit with anti-foulant device fittings, for when
19plus used on moorings
The 19plus can be used with the following Sea-Bird equipment:
•
Note:
The SBE 32 Carousel is a 12-,
24-, or 36-bottle water sampler.
The SBE 55 ECO is a 3- or 6bottle water sampler.
SBE 32 Carousel Water Sampler and SBE 33 Carousel Deck Unit OR
SBE 55 ECO Water Sampler and SBE 33 Carousel Deck Unit The SBE 32 or SBE 55 provides +15 VDC power to the 19plus and has
ample power for auxiliary sensors not normally supported by batterypowered CTDs. CTD data from the 19plus is converted into single-wire
telemetry for transmission over long (10,000 meter [32,800 feet]) sea
cables. Bottles may be closed at any depth without interrupting CTD data
via software control using the SEASAVE program or from the front panel
of the SBE 33 Deck Unit. See the SBE 33 manual for operating details.
SBE 32 Real-Time Operation
8
Section 2: Description of SBE 19plus
•
SBE 36 CTD Deck Unit and Power Data Interface Module (PDIM) These items provide power and real-time data handling capability over
single-conductor sea cables using the same method employed in the
SBE 32/SBE 33. The PDIM is a small pressure housing that is mounted on
or near the 19plus. It provides +15 VDC power to the 19plus and interfaces
two-way RS-232 communications from the 19plus to the telemetry used on
the sea cable. See the SBE 36/PDIM manual for operating details.
•
SBE 32 Carousel Water Sampler and Auto Fire Module (AFM) - The
AFM, mounted on or near the 19plus, allows the SBE 32 to operate
autonomously on non-conducting cables. The AFM supplies the power,
logic, and control commands to operate the SBE 32. The AFM monitors the
pressure data recorded by the 19plus in real-time, closing water sampler
bottles at predefined pressures (depths) or whenever the system is stationary
for a specified period of time. Bottle number, firing confirmation, and five
scans of CTD data are recorded in the AFM memory for each bottle fired.
See the AFM manual for operating details.
SBE 32 Autonomous Operation
9
Section 2: Description of SBE 19plus
•
Note:
The SBE 32 Carousel is a 12-,
24-, or 36-bottle water sampler.
The SBE 55 ECO is a 3- or 6bottle water sampler.
Notes:
• Help files provide detailed
information on the use of
SEATERM, SeatermAF, SEASAVE
V7, and SBE Data Processing.
• Separate software manuals on CDROM contain detailed information on
the setup and use of SEASAVE V7
and SBE Data Processing.
• Sea-Bird also supplies an older
version of SEASAVE, SEASAVEWin32. However, all SEASAVE
instructions in this manual are
written for SEASAVE V7. See
SEASAVE-Win32’s manual and/or
Help files if you prefer to use the
older software.
SBE 55 ECO Water Sampler - The SBE 55 has built-in capabilities
similar to that of an SBE 32 Carousel Water Sampler integrated with an
Auto Fire Module, allowing the SBE 55 to operate autonomously on nonconducting cables. The SBE 55 monitors the pressure data recorded by the
19plus in real-time, closing water sampler bottles at predefined pressures
(depths) or whenever the system is stationary for a specified period of time.
Bottle number, firing confirmation, and five scans of CTD data are recorded
in the SBE 55 memory for each bottle fired. See the SBE 55 manual for
operating details.
The 19plus is supplied with a powerful Windows 2000/XP software package,
SEASOFT-Win32, which includes:
• SEATERM – terminal program for easy communication and
data retrieval.
• SeatermAF – terminal program for easy communication and data
retrieval when the 19plus is used with a water sampler operated
autonomously (SBE 32 Carousel Water Sampler with Auto Fire Module
or SBE 55 ECO Water Sampler).
• SEASAVE V7 – program for acquiring, converting, and displaying realtime or archived raw data.
• SBE Data Processing – program for calculation and plotting of
conductivity, temperature, pressure, auxiliary sensor data, and derived
variables such as salinity and sound velocity.
10
Section 2: Description of SBE 19plus
Specifications
Temperature
(°C)
Conductivity
(S/m)
Strain Gauge
Pressure
-5 to +35
0 to 9
0 to full scale
range:
20/100/350/600/
1000/2000/3500/
7000 meters
Initial Accuracy
0.005
0.0005
0.1% of full scale
range
Typical Stability
0.0002
per month
0.0003 per month
0.05% of full scale
range
per year
0.0001
• 0.00005 (most
oceanic water;
resolves 0.4 ppm
in salinity).
• 0.00007 (high
salinity water;
resolves 0.4 ppm
in salinity).
• 0.00001 (fresh
water; resolves
0.1 ppm in salinity).
0.002% of full
scale range
+1 to +32
0 to 9; physical
calibration over
range 2.6 to 6 S/m,
plus zero conductivity
(air)
Ambient pressure
to full scale range
in 5 steps
Measurement
Range
Resolution
Sensor
Calibration
(measurement
outside these
ranges may be at
slightly reduced
accuracy due to
extrapolation errors)
Continued on next page
11
Section 2: Description of SBE 19plus
Continued from previous page
Note:
Battery packs for NiMH, Ni-Cad,
and alkaline batteries differ –
you cannot put alkalines in the
NiMH or Ni-Cad battery pack or
vice versa.
Memory
8 Mbyte non-volatile FLASH memory
Data Storage
Recorded Parameter
Temperature & Conductivity
strain-gauge Pressure
each external voltage
date & time (Moored mode only)
Real-Time Clock
32,768 Hz TCXO accurate to ±1 minute/year
Internal Batteries
(nominal capacity)
Standard 9 alkaline D-cells (Duracell MN1300, LR20) 14 amp-hours.
Optional NiMH battery pack – 8 amp-hours.
Optional Ni-Cad battery pack - 4.4 amp-hours.
External Power
Supply
9 - 28 VDC; current requirement varies, depending on
voltage and pump:
• 3 Amps at 9V input - SBE 5M pump (cannot use SBE 5T
or 5P pump with 9V input)
• 0.5 Amps at 12V input – SBE 5M pump
• 3 Amps at 12V input – SBE 5T or 5P pump
• 0.5 Amps at 19V input – SBE 5M pump
• 1.5 Amps at 19V input – SBE 5T or 5P pump
Sampling:
Pump:
Communications:
Quiescent:
Power
Requirements
Bytes/sample
6 (3 each)
5
2
4
65 mA
Standard SBE 5M
Optional SBE 5P or 5T
60 mA
30 μA
100 mA
150 mA
Moored Mode sampling time:
• Minimum 2.5 seconds/sample [pump running
while sampling (MooredPumpMode=2),
1 measurement/sample, and no delays].
• Add 0.25 seconds for each additional
measurement/sample (NCycles > 2).
• Add pump on-time (0.5 second) if pump running before
taking sample (MooredPumpMode=1).
• Add time for user-programmed delay before sampling
(DelayBeforeSampling=).
Approximate Battery Endurance 1:
CTD & 5M pump, no auxiliary sensors:
60 hours Profiling Mode, 145,000 samples Moored Mode.
1
With Duracell MN 1300 (LR20) cells. Dependent on sampling
scheme; see Battery Endurance for example calculations.
Auxiliary Voltage
Sensors
Auxiliary power out: up to 500 mA at 10.5 - 11 VDC
A/D resolution: 14 bits
Input range: 0 - 5 VDC
Housing Depth /
Materials
Standard: 600 meter (1950 ft) - acetal copolymer (plastic).
Optional: 7000 meter (22,900 ft) - 3AL-2.5V titanium
Weight
With plastic housing, no pump:
in air 7.3 kg (16 lbs)
With titanium housing, no pump:
in air 13.7 kg (30 lbs)
in water 2.3 kg (5 lbs)
in water 8.6 kg (19 lbs)
Pump adds (in air) 0.3 to 0.7 kg (0.6 to 1.5 lbs), depending
on pump model selected. See pump brochures for details.
Optional Cage
12
Dimensions: 1016 x 241 x 279 mm (40 x 9.5 x 11 in.)
Weight: 6.3 kg (14 lbs)
Section 2: Description of SBE 19plus
Dimensions and End Cap Connectors
Dimensions in millimeters (inches)
13
Section 2: Description of SBE 19plus
Batteries
Note:
See Replacing / Recharging Batteries
in Section 5: Routine Maintenance
and Calibration.
For the main battery, the SBE 19plus uses nine D-cell alkaline batteries
(Duracell MN 1300, LR20), or rechargeable Nickel Metal Hydride (NiMH) or
Nickel-Cadmium (Ni-Cad) batteries. If necessary, carbon-zinc or mercury cells
can be used.
On-board lithium batteries (non-hazardous units that are unrestricted for
shipping purposes) are provided to back-up the buffer and the real-time clock in
the event of main battery failure or exhaustion. The main batteries may be
replaced without affecting either the real-time clock or memory.
Battery Endurance
Notes:
• See Specifications for power
requirements.
• If the 19plus is logging data and
the battery voltage is less than the
battery cut-off, the 19plus halts
logging and displays a low battery
indication in the data. See
BatteryType= command in
Command Descriptions in
Section 4: Deploying and
Operating SBE 19plus for cut-off
values for various battery types.
• See Data Storage and
Specifications for data
storage limitations.
The standard alkaline battery pack has a nominal capacity of 14 amp-hours;
for planning purposes, Sea-Bird recommends using a conservative value of
10.5 amp-hours. The optional NiMH battery pack has a nominal capacity of
8 amp-hours. The optional Ni-Cad battery pack has a nominal capacity of
4.4 amp-hours.
Current consumption and sampling times vary greatly, depending on:
• instrument configuration - inclusion of optional SBE 5T or 5P pump and/or
auxiliary sensors, and
• user-programmed sampling parameters - Profiling or Moored mode;
if in Moored mode, the pump mode, number of measurements per sample,
and delay before sampling influence power consumption.
Examples are shown below for several sampling schemes for both Profiling and
Moored mode.
Profiling Mode Examples
Example 1 - standard alkaline batteries, SBE 5M pump, no auxiliary sensors
Sampling current = 65 mA
Pump current = 100 mA
Maximum sampling time ≈ 10.5 amp-hours / (0.065 Amps + 0.100 Amps) ≈ 63 hours
Example 2 - standard alkaline batteries, optional SBE 5T pump, auxiliary sensors drawing 100 mA
Sampling current = 65 mA
Pump current = 150 mA
Auxiliary sensor current = 100 mA
Maximum sampling time ≈ 10.5 amp-hours / (0.065 Amps + 0.150 Amps + 0.100 Amps) ≈ 33 hours
14
Section 2: Description of SBE 19plus
Moored Mode Examples
A 19plus with standard alkaline batteries is set up to sample autonomously every 10 minutes (6 samples/hour).
How long can it be deployed?
Example 1 – SBE 5M pump on for 0.5 sec/sample (MooredPumpMode=1), no auxiliary sensors,
1 measurement/sample (NCycles=1):
Sampling current = 65 mA * (2.5 sec + 0.5 sec) = 0.195 amp-sec/sample
In 1 hour, sampling current = 6 * 0.195 amp-sec/sample = 1.17 amp-sec/hour
Pump current = 100 mA * 0.5 sec = 0.05 amp-sec/sample
In 1 hour, pump current = 6 * 0.05 amp-seconds/sample = 0.3 amp-sec/hour
Quiescent current = 30 microamps = 0.03 mA
In 1 hour, quiescent current ≈ 0.03 mA * 3600 sec/hour = 0.108 amp-sec/hour
Current consumption / hour = 1.17 + 0.3 + 0.108 = 1.58 amp-sec/hour
Capacity = (10.5 amp-hours * 3600 sec/hr) / (1.58 amp-sec/hour) = 23924 hours = 996 days = 2.7 years
However, Sea-Bird recommends that batteries should not be expected to last longer than 2 years in the field.
Example 2 - optional SBE 5T pump on during sample (MooredPumpMode=2), 15 sec delay before sampling
(DelayBeforeSampling=15), auxiliary sensors drawing 100 mA, 4 measurements/sample (NCycles=4):
On-time = 2.5 + 15 (delay before sampling) + (4 – 1) * 0.25 (additional measurements/sample) = 18.25 sec
Sampling current = 65 mA * 18.25 sec = 1.19 amp-sec/sample
In 1 hour, sampling current = 6 * 1.19 amp-sec/sample = 7.1 amp-sec/hour
5T Pump current = 150 mA * 18.25 sec = 2.74 amp-sec/sample
In 1 hour, pump current = 6 * 2.74 amp-sec/sample = 16.4 amp-sec/hour
Auxiliary sensor current = 100 mA * 18.25 sec = 1.82 amp-sec/sample
In 1 hour, auxiliary sensor current = 6 * 1.82 amp-sec/sample = 10.9 amp-sec/hour
Quiescent current = 30 microamps = 0.03 mA
In 1 hour, quiescent current ≈ 0.03 mA * 3600 sec/hour = 0.108 amp-sec/hour
Current consumption / hour = 7.1 + 16.4 + 10.9 + 0.108 = 34.5 amp-sec/hour
Capacity = (10.5 amp-hours * 3600 sec/hr) / (34.5 amp-sec/hour) = 1095 hours = 45 days = 0.12 years
15
Section 2: Description of SBE 19plus
External Power
The SBE 19plus can be powered from an external source (9 - 28 volts DC)
through the I/O bulkhead connector on the sensor end cap. The internal battery
pack is diode-OR’d with the external source, so power will be drawn from
whichever voltage source is higher. The 19plus can also be operated from the
external supply without having the internal battery pack installed. Electrical
isolation of conductivity is retained in units powered externally, preventing
ground loop noise contamination in the conductivity measurement.
Cable Length and External Power for SBE 19plus
without Deck Unit
Note:
See Real-Time Setup in
Section 4: Deploying and
Operating SBE 19plus for baud
rate limitations on cable length if
transmitting real-time data.
There are two issues to consider if powering the 19plus externally:
• Limiting the communication IR loss to 1 volt if transmitting real-time
data; higher IR loss will prevent the instrument from transmitting realtime data because of the difference in ground potential.
• Supplying enough power at the power source so that sufficient power is
available at the instrument after considering IR loss.
Each issue is discussed below.
Note:
Common wire resistances:
Limiting Communication IR Loss to 1 Volt if Transmitting Real-Time Data
Gauge
12
14
16
18
19
20
22
24
26
28
The limit to cable length is typically reached when the maximum current
during communication times the power common wire resistance is more than
1 volt, because the difference in ground potential of the 19plus and ground
controller prevents the 19plus from transmitting real-time data.
V limit = 1 volt = IR limit
Maximum cable length = R limit / wire resistance per foot
where I = current required by SBE 19plus during communication. The current
varies, depending on operating mode:
• Profiling mode – The 19plus samples and transmits data continuously.
Use the total current required for sampling (sampling, pump, auxiliary
sensor current, and communication current) in the calculation.
• Moored mode – The 19plus samples, and then transmits data. Use the
communication current, 60 mA, in the calculation.
Resistance (ohms/foot)
0.0016
0.0025
0.0040
0.0064
0.0081
0.0107
0.0162
0.0257
0.0410
0.0653
Profiling Mode Examples - for 19plus with standard SBE 5M pump and no auxiliary sensors
Example 1 – For 20 gauge wire, what is maximum distance to transmit power to 19plus if transmitting real-time data?
Current = 65 mA (sampling) + 100 mA (pump) + 60 mA (communication) = 225 mA
R limit = V limit / I = 1 volt / 0.225 Amps = 4.4 ohms
For 20 gauge wire, resistance is 0.0107 ohms/foot.
Maximum cable length = 4.4 ohms / 0.0107 ohms/foot = 415 feet = 126 meters
Example 2 – Same as above, but there are 4 instruments powered from the same power supply.
R limit = V limit / I = 1 volt / (0.225 Amps * 4 instruments) = 1.1 ohms
Maximum cable length = 1.1 ohms / 0.0107 ohms/foot = 103 feet = 31 meters (to 19plus furthest from power source).
Moored Mode Examples – use 60 mA communication current, regardless of 19plus configuration
Example 1 – For 20 gauge wire, what is maximum distance to transmit power to 19plus if transmitting real-time data?
For 60 milliamp communications current, R limit = V limit / I = 1 volt / 0.060 Amps = 16.7 ohms
For 20 gauge wire, resistance is 0.0107 ohms/foot.
Maximum cable length = 16.7 ohms / 0.0107 ohms/foot = 1557 feet = 474 meters
Example 2 – Same as above, but there are 4 instruments powered from the same power supply.
For 60 milliamp communications current, R limit = V limit / I = 1 volt / (0.060 Amps * 4 instruments) = 4.1 ohms
Maximum cable length = 4.1 ohms / 0.0107 ohms/foot = 389 feet = 118 meters (to 19plus furthest from power source).
16
Section 2: Description of SBE 19plus
Supplying Enough Power to SBE 19plus
Another consideration in determining maximum cable length is supplying
enough power at the power source so that sufficient voltage is available, after
IR loss in the cable (from the turn-on transient, two-way resistance), to
power the 19plus. The table summarizes the maximum 2-way resistance for
various input supplies and pump configurations:
Power Supply Input
and Pump Configuration
3 Amps at 9V input, SBE 5M pump
(cannot use SBE 5T or 5P pump with 9V input)
0.5 Amps at 12V input, SBE 5M pump
3.0 Amps at 12V input, SBE 5T or 5P pump
0.5 Amps at 19V input, SBE 5M pump
1.5 Amps at 19V input, SBE 5T or 5P pump
R limit = Maximum 2-way
Resistance (ohms)
1
10
2
30
7
Calculate maximum cable length as:
Maximum cable length = R limit / 2 * wire resistance per foot
Example 1 – For 20 gauge wire, what is maximum distance to transmit power to 19plus if using 12 volt power source
with SBE 5T pump?
Maximum cable length = R limit / 2 * wire resistance per foot = 2 ohms / 2 * 0.0107 ohms/foot = 93 ft = 28 meters
Note that 28 meters < 173 meters and 474 meters (maximum distance if transmitting real-time data in examples above),
so IR drop in power is controlling factor for this example. Using a higher voltage power supply or a different wire gauge
would increase allowable cable length.
Example 2 – Same as above, but there are 4 instruments powered from same power supply.
Maximum cable length = R limit / 2 * wire resistance per foot * 4 instruments
= 2 ohms / 2 * 0.0107 ohms/foot * 4 = 23 ft = 7 meters (to 19plus furthest from power source)
17
Section 2: Description of SBE 19plus
Data Storage
Note:
See Battery Endurance for
power limitations.
The SBE 19plus has an 8 Mbyte memory. Shown below are calculations of
available data storage for several configurations. See Specifications for storage
space required for each parameter.
Example 1: Profiling mode, no auxiliary sensors
T & C = 6 bytes/sample
Strain-gauge P = 5 bytes/sample
Storage space ≈ 8,000,000 / (6 + 5) ≈ 727,000 samples
Example 2: Profiling mode, 4 external voltages
T & C = 6 bytes/sample
Strain-gauge P = 5 bytes/sample
External voltages = 2 bytes/sample * 4 voltages = 8 bytes/sample
Storage space ≈ 8,000,000 / (6 + 5 + 8) ≈ 421,000 samples
Example 3: Moored mode (causes 19plus to store date and time), 4 external voltages
T & C = 6 bytes/sample
Strain-gauge P = 5 bytes/sample
External voltages = 2 bytes/sample * 4 voltages = 8 bytes/sample
Date/Time = 4 bytes/sample
Storage space ≈ 8,000,000 / (6 + 5 + 8 + 4) ≈ 347,000 samples
Data I/O
The SBE 19plus receives setup instructions and outputs diagnostic information
or previously recorded data via a three-wire RS-232C link, and is factoryconfigured for 9600 baud, 8 data bits, 1 stop bit, and no parity.
19plus RS-232 levels are directly compatible with standard serial interface cards
(IBM Asynchronous Communications Adapter or equal). The communications
baud rate can be changed using Baud= (see Command Descriptions in
Section 4: Deploying and Operating SBE 19plus).
Magnetic Reed Switch
Magnetic switch
Profiling Mode
A magnetic switch, mounted on the conductivity cell guard, can be used to
start and stop logging in Profiling mode. Sliding the switch to the On position
wakes up the SBE 19plus and starts logging. Sliding the switch to the Off
position stops logging. The switch should be Off (towards the sensor end cap)
when the 19plus is not logging data; i.e., during setup, diagnostics, and
data extraction.
Sensor
end cap
Notes:
• See Command Descriptions in
Section 4: Deploying and
Operating SBE 19plus.
• Leave the switch in the Off
position if IgnoreSwitch=Y or
AutoRun=Y, or in Moored mode. If
the switch is On, the 19plus draws
an additional 15 μA from the
battery while in quiescent state.
The 19plus can be set up to ignore the switch position:
• If IgnoreSwitch=Y: logging is started and stopped with
commands sent through the terminal program. Switch position has no
effect on logging.
• If AutoRun=Y: logging is started and stopped when external power is
applied and removed. Switch position has no effect on logging.
Moored Mode
In Moored mode, the magnetic switch position has no effect on logging.
Logging is started and stopped with commands sent through the
terminal program.
18
Section 2: Description of SBE 19plus
Configuration Options and Plumbing
Note:
See Section 4: Deploying and
Operating SBE 19plus for pump
setup and operation.
The standard SBE 19plus includes an externally mounted SBE 5M pump, which
provides a constant flow rate through the conductivity cell regardless of descent
rate. If configured with a dissolved oxygen sensor or pumped fluorometer, the
more powerful SBE 5T (titanium) or 5P (plastic) pump is used. Any of these
pumps is powered via a cable connected to the 2-pin pump bulkhead connector
on the sensor end cap.
The 19plus can be configured with a wide range of auxiliary sensors.
Two standard 6-pin bulkhead connectors on the sensor end cap serve as the input
ports for the auxiliary sensor signal voltages and provide power to the sensors.
An optional connector can also be provided for interfacing with a PAR sensor.
A 19plus is typically deployed in a vertical position. However, when used with
an SBE 32 (full size) Carousel Water Sampler, the 19plus is deployed in a
horizontal position in an extension stand below the Carousel. Pump placement
and plumbing for a horizontal mount is different than that for a vertical mount.
Sea-Bird provides the system with pump placement and plumbing for the
desired orientation at the time of purchase. However, you may reorient the
system later as needed. Failure to place the pump and plumbing properly can
trap air, preventing the pump from working properly.
Shown below are schematics of the system configuration for vertical and
horizontal deployment. In the schematics, cables are omitted for clarity.
Secure each tubing connection with 2 cable ties.
Vertical Mount
•
Place the exhaust as far from the intake as possible, so that exhaust water
is not pulled into the intake. Failure to place the exhaust away from the
intake can lead to errors in temperature data, because the pump transfers
heat to the exhaust water.
19
Section 2: Description of SBE 19plus
Shown below is the vertical mount plumbing arrangement of a 19plus
equipped with the standard SBE 5M miniature pump (standard plastic or
optional titanium).
Air bleed valve detail
0.5 mm (0.02 in.)
Note: Periodically clean air
bleed valve to ensure
proper functioning.
• Main plumbing is 13 mm ID x 19 mm OD
(1/2 inch x 3/4 inch) Tygon tubing.
• A 13 mm (1/2 inch) long piece of
9.5 mm ID x 13 mm OD (3/8 inch x 1/2 inch)
Tygon tubing is installed on the conductivity
cell exhaust to provide tight seals to the main
plumbing when optional anti-foul fittings are
installed on the 19plus.
20
Section 2: Description of SBE 19plus
Note:
Sea-Bird recommends use of
the pH sensor on the 19plus
only when the 19plus is in
Profiling mode (MP).
Shown below is the vertical mount plumbing arrangement of a 19plus
configured with the optional SBE 5T titanium or 5P plastic pump, SBE 43
dissolved oxygen (DO) sensor, and SBE 18 pH sensor. Note that the SBE 43 is
plumbed into the system between the conductivity cell outlet and the Y-fitting.
The SBE 18 is not connected to the plumbing.
Air bleed valve detail
• Main plumbing is 13 mm ID x 19 mm OD
(1/2 inch x 3/4 inch) Tygon tubing.
• A 13 mm (1/2 inch) long piece of
9.5 mm ID x 13 mm OD (3/8 inch x 1/2 inch)
Tygon tubing to provide tight seals to the main
plumbing is installed:
- on the SBE 43 intake and exhaust, and
- on the conductivity cell exhaust when optional
anti-foul fittings are installed on the 19plus.
0.5 mm (0.02 in.)
Note: Periodically clean air
bleed valve to ensure
proper functioning.
21
Section 2: Description of SBE 19plus
Horizontal Mount
Shown below is the horizontal mount plumbing arrangement of a 19plus
configured with the optional SBE 5T titanium or 5P plastic pump, and SBE 43
dissolved oxygen (DO) sensor. Note that the SBE 43 is plumbed into the
system between the conductivity cell outlet and the pump inlet.
• Place the DO sensor intake above the conductivity sensor exhaust.
• Place the pump intake above the DO sensor exhaust.
• Orient the pump with the exhaust outlet corner up.
• If the system does not include a DO sensor, connect the tubing from the
conductivity cell directly to the pump intake.
• Main plumbing is 13 mm ID x 19 mm OD
(1/2 inch x 3/4 inch) Tygon tubing.
• A 13 mm (1/2 inch) long piece of
9.5 mm ID x 13 mm OD (3/8 inch x
1/2 inch) Tygon tubing to provide tight
seals to main plumbing is installed:
- on SBE 43 intake and exhaust, and
- on conductivity cell exhaust when
optional anti-foul fittings are installed on
19plus.
DO sensor intake and
exhaust tubing detail
22
Section 3: Power and Communications Test
Section 3:
Power and Communications Test
This section describes software installation and the pre-check procedure for
preparing the SBE 19plus for deployment. The power and communications
test will verify that the system works, prior to deployment.
Software Installation
Sea-Bird recommends the following minimum system requirements for
SEASOFT-Win32: Windows 2000 or later, 500 MHz processor, 256 MB
RAM, and 90 MB free disk space for installation.
Note:
It is possible to use the 19plus
without SEATERM by sending
direct commands from a dumb
terminal or terminal emulator, such
as Windows HyperTerminal.
If not already installed, install SEATERM and other Sea-Bird software
programs on your computer using the supplied software CD:
1.
Insert the CD in your CD drive.
2.
Double click on Seasoft-Win32.exe.
3.
Follow the dialog box directions to install the software.
The default location for the software is c:/Program Files/Sea-Bird. Within that
folder is a sub-directory for each program. The installation program allows
you to install the desired components. Install all the components, or just install
SEATERM and SeatermAF (terminal programs), SEASAVE V7, and SBE
Data Processing.
Test Setup
1.
Remove the dummy plug and install the I/O cable:
A. By hand, unscrew the locking sleeve from the 19plus I/O (4-pin)
connector. If you must use a wrench or pliers, be careful not to loosen
the I/O connector instead of the locking sleeve.
B. Remove the dummy plug from the 19plus I/O connector by pulling
the plug firmly away from the connector.
Locking
sleeve
C. Standard Connector - Install the I/O cable connector, aligning the
raised bump on the side of the connector with the large pin
(pin 1 - ground) on the 19plus. OR
MCBH Connector - Install the I/O cable connector, aligning
the pins.
Dummy
plug
(standard)
2.
Connect the I/O cable connector to your computer’s serial port.
23
Section 3: Power and Communications Test
Test
Note:
See SEATERM’s Help files.
1.
Double click on SeaTerm.exe. If this is the first time the program is used,
the setup dialog box may appear:
SBE19plus
Select the instrument type (SBE 19plus) and the computer COM port for
communication with the 19plus. Click OK.
2.
The main screen looks like this:
Menus
Toolbar
Command/Data Echo Area
Status bar
Note:
There is at least one way, and as
many as three ways, to enter
a command:
• Manually type a command in
Command/Data Echo Area
• Use a menu to automatically
generate a command
• Use a Toolbar button to
automatically generate
a command
Instrument
EPROM version
•
•
Note:
Once the system is configured and
connected (Steps 3 through 5
below), to update the Status bar:
• on the Toolbar, click Status; or
• from the Utilities menu, select
Instrument Status.
SEATERM sends the status
command, which displays in the
Command/Data Echo Area, and
updates the Status bar.
Computer
COM port
Instrument
•
•
Upload
parameter
Capture
to file
status –
grayed
out if not
capturing
Baud rate, data bits,
stop bits, and parity
Menus – Contains tasks and frequently executed instrument
commands.
Toolbar – Contains buttons for frequently executed tasks and
instrument commands. All tasks and commands accessed through the
Toolbar are also available in the Menus. To display or hide the
Toolbar, select View Toolbar in the View menu. Grayed out Toolbar
buttons are not applicable.
Command/Data Echo Area – Echoes a command executed using a
Menu or Toolbar button, as well as the instrument’s response.
Additionally, a command can be manually typed in this area, from the
available commands for the instrument. Note that the instrument must
be awake for it to respond to a command (use Connect on the Toolbar
to wake up the instrument).
Status bar – Provides status information. To display or hide the Status
bar, select View Status bar in the View menu.
24
Section 3: Power and Communications Test
Following are the Toolbar buttons applicable to the SBE 19plus:
Toolbar
Buttons
Description
Equivalent
Command*
Re-establish communications with 19plus.
Computer responds with S> prompt.
Connect 19plus goes to sleep after 2 minutes
(press Enter key)
without communication from computer
have elapsed.
Display instrument setup and status
Status
DS
(logging, samples in memory, etc.).
View data headers (cast/header number,
date and time, first and last sample in
cast/header, and number of measurements
to average or interval between samples).
Headers
DH
In Profiling mode, a new header is
generated for each CTD cast. In Moored
mode, a new header is generated at start of
logging and every subsequent 1000 scans.
Coefficients Display calibration coefficients.
DCal
Reset data pointers and cast numbers. This
should be performed after existing data
Init Log
InitLogging
has been uploaded from 19plus and prior
to recording new data.
Capture instrument responses on screen to
file; may be useful for diagnostics. File
Capture
has .cap extension. Press Capture again to
—
turn off capture. Capture status displays in
Status bar.
Upload data stored in memory, in format
Sea-Bird’s data processing software can
use (raw Hex). Uploaded data has .hex
DDb,e
extension. Before using Upload:
(use Upload button
• Configure upload and header
if you will be
Upload
parameters in Configure menu
processing data with
• Stop logging
SBE Data
(Profiling mode - slide switch off or
Processing)
send Stop command;
Moored mode – send Stop
command)
Perform one or more diagnostic tests on
19plus. Diagnostic test(s) accessed in
DS, DCal, TS, and
Diagnostics this manner are non-destructive –
TSR
they do not write over any existing
instrument settings.
Interrupt and end current activity, such as
(press Esc key or
Stop
uploading or diagnostic test.
Ctrl C)
Free computer COM port used to
Disconnect communicate with 19plus. COM port can
—
then be used by another program.
*See Command Descriptions in Section 4: Deploying and Operating
SBE 19plus.
25
Section 3: Power and Communications Test
3.
In the Configure menu, select SBE 19plus. The dialog box looks
like this:
Interface for communication
between computer and
19plus.
Computer COM port, baud rate,
data bits, and parity for
communication between computer
and 19plus.
Notes:
• SEATERM’s baud rate must be the
same as the 19plus baud rate (set
with Baud=). Baud is factory-set to
9600, but can be changed by the
user (see Command Descriptions in
Section 4: Deploying and Operating
SBE 19plus).
• When you click OK, SEATERM
saves the Configuration Options
settings to the SeaTerm.ini file in
your Windows directory.
SeaTerm.ini contains the last saved
settings for each instrument. When
you open SEATERM and select the
desired instrument (SBE 19plus,
37, 39, etc.) in the Configure menu,
the Configuration Options dialog
box shows the last saved settings
for that instrument.
Make the selections in the Configuration Options dialog box:
• COMM Port: COM 1 through COM 10, as applicable
• Baud Rate: 9600 (documented on Configuration Sheet)
• Data Bits: 8
• Parity: None
• Mode: RS-232 (Full Duplex)
Click OK to save the settings.
4.
In the Communications menu, select Options / Cycle baud
when connecting.
5.
Click Connect on the Toolbar. SEATERM tries to connect to the 19plus at
the baud set in Step 3. If it cannot, it cycles through all other possible
baud rates to try to connect. When it connects, the display looks like this:
S>
This shows that correct communications between the computer and 19plus
has been established.
If the system does not respond with the S> prompt:
• Click Connect again.
• Verify the correct instrument was selected in the Configure menu and
the settings were entered correctly in the Configuration Options
dialog box. Note that the baud rate is documented on the
Configuration Sheet.
• Check cabling between the computer and 19plus.
26
Section 3: Power and Communications Test
6.
Notes:
• The 19plus automatically enters
quiescent (sleep) state after
2 minutes without receiving a
command. This timeout algorithm
is designed to conserve battery
energy if the user does not send
QS to put the 19plus to sleep.
If the system does not appear to
respond, click Connect on the
Toolbar to reestablish
communications.
• Sending the status command
causes the pump to turn on for a
moment, so that the 19plus can
measure and output the pump
current. Because the pump is
designed to be water lubricated,
you may hear a noise when the
impeller spins in air. Running the
pump dry for short periods (for
example, when sending the
status command) will not harm
the pump.
Display 19plus status information by clicking Status on the Toolbar. The
display looks like this:
SeacatPlus V 1.5 SERIAL NO. 4000
22 May 2005 14:02:13
vbatt = 9.6, vlith = 8.6, ioper = 61.2 ma, ipump = 25.5 ma,
iext01 = 76.2 ma
status = not logging
number of scans to average = 1
samples = 0, free = 381300, casts = 0
mode = profile, minimum cond freq = 3000, pump delay = 60 sec
autorun = no, ignore magnetic switch = no
battery type = ALKALINE, battery cutoff = 7.3 volts
pressure sensor = strain gauge, range = 1000.0
SBE 38 = no, Gas Tension Device = no
Ext Volt 0 = yes, Ext Volt 1 = yes, Ext Volt 2 = no, Ext Volt 3 = no
echo commands = yes
output format = converted decimal
output salinity = no, output sound velocity = no
7.
Command the 19plus to take a sample by typing TS and pressing the
Enter key. The display looks like this (if in Profiling mode, with
converted decimal output format, no output salinity or sound velocity, and
auxiliary sensors on channels 0 and 1):
23.7658, 0.00019, 0.062, 0.5632, 2.3748
where
23.7658 = temperature in degrees Celsius
0.00019 = conductivity in S/m
0.062 = pressure in db
0.5632 = voltage for auxiliary sensor channel 0
2.3748 = voltage for auxiliary sensor channel 1
These numbers should be reasonable; e.g., room temperature, zero
conductivity, barometric pressure (gauge pressure).
8.
Command the 19plus to go to sleep (quiescent state) by typing QS and
pressing the Enter key.
The 19plus is ready for programming and deployment.
27
Section 4: Deploying and Operating SBE 19plus
Section 4: Deploying and Operating
SBE 19plus
This section includes discussions of:
Note:
Separate software manuals on
CD-ROM and Help files contain
detailed information on installation,
setup, and use of Sea-Bird’s realtime data acquisition software and
data processing software.
•
Sampling modes (Profiling and Moored), including example sets
of commands
•
Pump operation
•
Real-time setup
•
Timeout description
•
Command descriptions
•
Data output formats
•
Optimizing data quality for Profiling applications
•
Installing anti-foul fittings for Moored applications
•
Deployment
•
Acquiring real-time data with SEASAVE
•
Recovery - physical handling and uploading data
•
Processing data
Sampling Modes
The SBE 19plus has two sampling modes for obtaining data:
Notes:
• The 19plus automatically enters
quiescent state after 2 minutes
without receiving a command.
• Set OutputFormat=0 if you will be
using Sea-Bird’s real-time data
acquisition software (SEASAVE)
or data processing software
(SBE Data Processing).
•
Profiling mode
•
Moored mode
Descriptions and examples of the sampling modes follow. Note that the 19plus
response to each command is not shown in the examples. Review the
operation of the sampling modes and the commands described in Command
Descriptions before setting up your system.
28
Section 4: Deploying and Operating SBE 19plus
Profiling Mode
The SBE 19plus samples data at 4 Hz (one sample every 0.25 seconds),
averages the data at pre-programmed intervals, stores the averaged data in its
FLASH memory, and transmits the averaged data real-time. The 19plus
provides several methods for starting and stopping logging, depending on the
settings for IgnoreSwitch= and AutoRun=:
Note:
Sea-Bird ships the 19plus with
AutoRun=N (it will not
automatically start sampling
when external power is
applied). If you send
AutoRun=Y:
• Send QS to put 19plus in
quiescent (sleep) state, and
then turn power off and then
on again to start sampling.
or
• Send StartNow to
start sampling.
IgnoreSwitch=
AutoRun=
N
N
Y
N
Y or N
Y
To Start Logging:
To Stop Logging:
Slide magnetic
Slide magnetic switch off,
switch on.
or send Stop.
Send StartNow, or
StartMMDDYY=,
Send Stop.
StartHHMMSS=, and
StartLater.
• Turn off external power,
or
• (if you want to send
Turn on
commands to check or
external power.
modify setup) Send
Stop, click Stop on
SEATERM’s Toolbar,
or type Ctrl Z.
Example: 19plus in Profiling mode
Wake up 19plus. Set date and time to September 1, 2004 at 9 am. Initialize
logging to overwrite previous data in memory. Set up with strain-gauge
pressure sensor and 1 voltage sensor, average every 4 samples, and output
data in raw hex format. Set up with a 60-second pump turn-on delay after
pump enters water, to ensure pump is primed before turning on. Set up to
initiate logging with the magnetic switch. After all parameters are entered,
verify setup with status command. Send power-off command.
(Click Connect on Toolbar to wake up.)
S>MMDDYY=090104
S>HHMMSS=090000
S>INITLOGGING
S>PTYPE=1
S>VOLT0=Y
S>NAVG=4
S>OUTPUTFORMAT=0
S>PUMPDELAY=60
S>IGNORESWITCH=N
S>DS
(to verify setup)
S>QS
Start logging by putting magnetic switch in On position. Put 19plus in water,
and allow to soak for at least time required for pump turn-on
(PumpDelay=60) before beginning downcast. If desired, use SEASAVE to
view real-time data. When cast is complete, stop logging by putting magnetic
switch in Off position.
Upload data in memory, in format SBE Data Processing can use.
Send power-off command.
(Click Connect on Toolbar to wake up.)
(Click Upload on Toolbar – program leads you through screens to define data
to be uploaded and where to store it.)
S>QS
29
Section 4: Deploying and Operating SBE 19plus
Moored Mode
At pre-programmed intervals, the SBE 19plus wakes up, samples data, stores
the data in its FLASH memory, and enters quiescent (sleep) state.
The 19plus goes to sleep for a minimum of 3 seconds between each sample.
Logging is started with StartNow or StartLater, and is stopped with Stop. If
real-time data is to be transmitted (MooredTxRealTime=Y), data is
transmitted after measurements are complete for that sample and before
sampling begins for the next sample.
Example: 19plus in Moored mode
Wake up 19plus. Set date and time to September 1, 2004 at 9 am. Initialize logging to overwrite previous data in
memory. Set up with strain-gauge pressure sensor and 1 voltage sensor, take a sample every 120 seconds, take and
average 4 measurements for each sample, do not transmit real-time data, and output data in raw hex format. Set up
pump to run for 0.5 seconds before each sample. Set up to start logging on September 15, 2004 at 11 am. Send
command to start logging at designated date and time. After all parameters are entered, verify setup with status
command. Send power-off command.
(Click Connect on Toolbar to wake up.)
S>MMDDYY=090104
S>HHMMSS=090000
S>INITLOGGING
S>PTYPE=1
S>VOLT0=Y
S>SAMPLEINTERVAL=120
S>NCYCLES=4
S>MOOREDTXREALTIME=N
S>OUTPUTFORMAT=0
S>MOOREDPUMPMODE=1
S>STARTMMDDYY=091504
S>STARTHHMMSS=110000
S>STARTLATER
S>DS
(to verify setup)
S>QS
Deploy 19plus. Logging starts automatically at programmed date and time.
Upon recovering 19plus, stop logging. Upload data in memory, in format SBE Data Processing can use.
Send power-off command.
(Click Connect on Toolbar to wake up.)
S>STOP
(Click Upload on Toolbar – program leads you through screens to define data to be uploaded and where to store it.)
S>QS
30
Section 4: Deploying and Operating SBE 19plus
Pump Operation - General
Do not run the pump dry. The pump is water lubricated; running it without
water will damage it. If briefly testing your system in dry conditions, fill the
inside of the pump head with water via the pump exhaust port. This will
provide enough lubrication to prevent pump damage during brief testing.
Pump Operation - Profiling Mode
Note:
The air bleed valve is used only when
the 19plus is deployed in a vertical
orientation, as shown below. For
horizontal orientation, ensure that the
cell inlet and pump outlet remain below
the surface for PumpDelay=; see
horizontal schematic in Configuration
Options and Plumbing in Section 2:
Description of SBE 19plus.
After the conductivity cell enters the water, there is a user-programmable
delay before pump turn-on so that all the air in the pump tubing can escape. If
the pump motor turns on when there is air in the impeller housing, priming is
uncertain and a proper flow rate cannot be ensured. The tubing extending
above the air-bleed hole will contain a small reserve of water. This maintains
the pump prime (for up to 1 minute, depending on the length of tubing above
the air-bleed), even if the SBE 19plus is lifted up so that the cell inlet and
pump outlet are just below the water surface. This allows beginning the actual
profile very near the top of the water. The cell inlet and pump outlet must
not come above the water surface or the prime will be lost.
•
Air bleed
valve
Pump turn-on occurs when two user-programmable conditions have been met:
•
Raw conductivity frequency exceeds the minimum conductivity
frequency (MinCondFreq=)
Set the minimum conductivity frequency for pump turn-on above the
instrument’s zero conductivity raw frequency (shown on the 19plus
Configuration Sheet), to prevent the pump from turning on when the
19plus is in air.
¾ For salt water and estuarine applications:
typical value = zero conductivity raw frequency + 500 Hz
¾ For fresh/nearly fresh water:
typical value = zero conductivity raw frequency + 5 Hz
If the minimum conductivity frequency is too close to the zero
conductivity raw frequency, the pump may turn on when the 19plus is in
air, as a result of small drifts in the electronics. Some experimentation
may be required, and in some cases it may be necessary to rely only on the
pump turn-on delay time to control the pump. If so, set a minimum
conductivity frequency lower than the zero conductivity raw frequency.
•
Pump turn-on delay time has elapsed (PumpDelay=)
Set the pump turn-on delay time to allow time for the Tygon tubing and
pump to fill with water after the 19plus is submerged. Determine the turnon delay by immersing the 19plus (switch off, not running) just below the
air-bleed hole at the top of the Tygon tubing. Measure the time needed to
completely fill the tubing (by watching for when air bubbles stop coming
our of the air bleed valve); 30 seconds is typical. Set the delay to
approximately 1.5 times longer. When actually using the 19plus, be sure
to soak the instrument just under the surface for at least the time required
for pump turn-on.
Pump
outlet
Cell
inlet
Plumbing for Vertical Orientation
(see Configuration Options and
Plumbing in Section 2: Description
of SBE 19plus for plumbing for
horizontal orientation)
If prime is lost: Stop logging. Wait at least 5 seconds, then start logging,
submerge the 19plus completely, and wait for the pump delay time before
beginning the profile. (Start and stop logging with the magnetic switch,
commands, or external power, depending on your setup.)
Pump turn-off occurs when the conductivity frequency drops below
MinCondFreq.
31
Section 4: Deploying and Operating SBE 19plus
Pump Operation - Moored Mode
Pump operation is governed by two user-programmable parameters:
• MooredPumpMode=0, 1, or 2
The 19plus can be set up to operate with no pump (0),
with the pump running for 0.5 seconds before each sample (1), or
with the pump running during each sample (2).
• DelayBeforeSampling=
The 19plus can be set up to delay sampling after turning on external
voltage sensors. Some instruments require time to equilibrate or stabilize
after power is applied, to provide good quality data.
MooredPumpMode= and DelayBeforeSampling= interact in the operation of
the pump, as shown below. Recommendations for settings are provided on the
next page.
(> 2.5 seconds)
Note:
Sampling time includes time for instrument to warm up as well as time to actually measure parameters. The 2.5 second
sampling time is for 19plus with 1 measurement / sample (NCycles=1). See Specifications in Section 2: Description of
SBE 19plus for sampling times for other setups.
32
Section 4: Deploying and Operating SBE 19plus
Moored Mode Pump Setting Recommendations
Sea-Bird provides the following recommendations for pump settings. Note that
longer pump times increase power usage, reducing battery endurance.
See Battery Endurance in Section 2: Description of SBE 19plus for sample
battery endurance calculations.
Pump through Conductivity Cell Only
For most deployments, set MooredPumpMode=1 and
DelayBeforeSampling=0. The pump operates for 0.5 seconds before the
conductivity measurement is made, providing enough time to ventilate the cell
and bring in a new sample of water.
If the 19plus is moored in an area with large thermal gradients, it may be
necessary to pump for a longer period of time, to eliminate any cell thermal
mass effects on the measurement. In this case, set MooredPumpMode=2 and
set DelayBeforeSampling= to a non-zero value, providing additional
ventilation time (allowing the conductivity cell temperature to equilibrate to
the water temperature) before taking the measurement.
Pump through Conductivity Cell and SBE 43 Dissolved Oxygen Sensor
Set MooredPumpMode=2.
Note:
See Application Note 64: SBE 43
Dissolved Oxygen Sensor –
Background Information, Deployment
Recommendations, and Cleaning and
Storage for the response time curves.
As the pump brings new water into the SBE 43 plenum, some time is required
for the sensor to equilibrate to the new oxygen level. The time required is
dependent on the sensor’s membrane thickness, and on the water temperature.
Prior to 2007, all SBE 43s were sold with a 0.5 mil thick membrane.
Beginning in 2007, Sea-Bird began offering two membrane thicknesses –
0.5 mil (faster response, typically for profiling applications) and
1.0 mil (slower response but more durable, typically for moored applications).
• For a 0.5 mil thick membrane – Recommended DelayBeforeSampling=
varies in a non-linear fashion, from 15 seconds at 15 °C to 30 seconds at
0 °C.
• For a 1.0 mil thick membrane – Recommended DelayBeforeSampling=
varies in a non-linear fashion, from 25 seconds at 15 °C to 40 seconds at
0 °C.
Pump through Conductivity Cell and Beckman- or YSI-type
Dissolved Oxygen Sensor
Set MooredPumpMode=2. Set DelayBeforeSampling= to
120 to 180 seconds, allowing time for the oxygen sensor to polarize before
taking the measurement.
33
Section 4: Deploying and Operating SBE 19plus
Real-Time Setup
Notes:
• Set baud rate with Baud=.
• Set data storage and real-time
output rate with NAvg= (for Profiling
Mode) or SampleInterval=
(for Moored Mode).
• Include auxiliary sensors in the data
stream with VoltN= commands.
• Set output format with
OutputFormat=.
• Real-time data is automatically
output in Profiling Mode.
In Moored Mode, set
MooredTxRealTime=Y
to output real-time data.
• If using external power, see External
Power in Section 2: Description of
SBE 19plus for power limitations on
cable length.
Baud Rate and Cable Length
Without a Sea-Bird Deck Unit
The rate that real-time data can be transmitted from the SBE 19plus
is dependent on the amount of data to be transmitted per scan and the serial
data baud rate:
Time required to transmit data =
(number of characters * 10 bits/character) / baud rate
where
Number of characters is dependent on the included data and output
format (see Data Output Formats).
Add 2 to the number of characters shown in the output format, to
account for the carriage return and line feed at the end of each scan.
For decimal output (OutputFormat=2 or 3), include decimal points,
commas, and spaces when counting the number of characters.
Time required to transmit data must be less than the real-time output rate.
The length of cable that the 19plus can drive is also dependent on the baud
rate. The allowable combinations are:
Maximum Cable Length (meters)
1600
800
400
200
100
50
25
Maximum Baud Rate
600
1200
2400
4800
9600
19200
38400
Example 1 - 19plus without a Deck Unit. Profiling Mode, configured with 2 external voltages. What is the fastest rate
you can transmit real-time data over 800 m with OutputFormat=0 (raw hexadecimal data)?
With 800 meters of cable and no Deck Unit, the 19plus requires a baud rate of 1200 or less.
Number of characters for OutputFormat=0 (from Data Output Formats) =
6 (T) + 6 (C) + 6 (P) + 4 (P temperature compensation) + 2*4 (external voltages) + 2 (carriage return & line feed) = 32
Time required to transmit data = (32 characters * 10 bits/character) / 1200 =
0.267 seconds > 0.25 seconds (4 Hz, maximum sampling rate).
Therefore, set NAvg=2, averaging 2 measurements/sample and storing and transmitting 1 sample every 0.5 seconds.
Example 2 - 19plus without a Deck Unit. Moored Mode, configured with 4 external voltages, 10 measurements/sample
(NCycles=10), pump running during sampling (MooredPumpMode=2), and a 15 second delay before sampling
(DelayBeforeSampling=15). What is the smallest sample interval you can use if you want to transmit real-time data
over 800 m with OutputFormat=0 (raw hexadecimal data)?
With 800 meters of cable, the 19plus requires a baud rate of 1200 or less.
Number of characters for OutputFormat=0 (from Data Output Formats) =
6 (T) + 6 (C) + 6 (P) + 4 (P temperature compensation) + 4*4 (external voltages) + 8 (time) + 2 (carriage return & line feed) = 48
Time required to transmit data = (48 characters * 10 bits/character) / 1200 = 0.4 seconds
Minimum time required for each sample =
15 seconds (delay after turning on power) + 2.5 second sampling time + [(10-1) * 0.25 seconds] +
0.4 seconds to transmit real-time + 3 seconds to go to sleep between samples = 23.15 seconds, round up to 24
Therefore, set SampleInterval=24, storing and transmitting one sample every 24 seconds.
34
Section 4: Deploying and Operating SBE 19plus
With a Sea-Bird Deck Unit
Set the 19plus baud rate to 4800 if using the 19plus with either of the
following real-time data acquisition systems:
•
SBE 36 CTD Deck Unit and Power and Data Interface Module (PDIM)
•
SBE 33 Carousel Deck Unit and SBE 32 Carousel Water Sampler OR
SBE 33 Carousel Deck Unit and SBE 55 ECO Water Sampler
The data telemetry link can drive 10,000 meters of cable while accepting
4800 baud serial data. The relationship between transmission rate, amount of
data transmitted, and baud rate is as described above for a 19plus without a
Deck Unit.
Example - 19plus with an SBE 33 or 36 Deck Unit. Profiling Mode, configured with 2 external voltages. What is the
fastest rate you can transmit data over 800 m with OutputFormat=0 (raw hexadecimal data)?
With a Deck Unit, the 19plus requires a baud rate of 4800.
Number of characters (from Data Output Formats) =
6 (T) + 6 (C) + 6 (P) + 4 (P temperature compensation) + 2*4 (external voltages) + 2 (carriage return & line feed) = 32
Time required to transmit data = (32 characters * 10 bits/character) / 4800 =
0.067 seconds < 0.25 seconds (4 Hz, maximum sampling rate).
Therefore, set NAvg=1, providing 4 Hz data (one sample every 0.25 seconds) for this configuration.
Real-Time Data Acquisition
Real-time data can be acquired in either of the following ways:
•
With SEASAVE (typical method) – When the 19plus is set up for
Profiling Mode or Autonomous Sampling Moored Mode, data can be
viewed in SEASAVE in tabular form or as plots, as raw data or as
converted (engineering units) data. Data acquired with SEASAVE can be
processed with SBE Data Processing. See SEASAVE’s Help files for
details on setting up the program displays, baud rates, etc., and beginning
data acquisition.
•
With SEATERM – Click Capture on SEATERM’s Toolbar. Begin
logging. The data displayed in SEATERM will be saved to the designated
file. Process the data as desired. Note that this file cannot be processed
by SEASAVE or SBE Data Processing, as it does not have the
required headers and format for Sea-Bird’s processing software.
35
Section 4: Deploying and Operating SBE 19plus
Timeout Description
The SBE 19plus has a timeout algorithm. If the 19plus does not receive a
command or sample data for 2 minutes, it powers down its main digital
circuits. This places the 19plus in quiescent state, drawing minimal current.
To re-establish control (wake up), press Connect on the Toolbar or the
Enter key. The system responds with the S> prompt.
Command Descriptions
This section describes commands and provides sample outputs.
See Appendix III: Command Summary for a summarized command list.
When entering commands:
•
•
•
•
•
•
•
•
•
Input commands to the 19plus in upper or lower case letters and register
commands by pressing the Enter key.
The 19plus sends ?CMD if an invalid command is entered.
If the system does not return an S> prompt after executing a command,
press the Enter key to get the S> prompt.
If a new command is not received within 2 minutes after the completion
of a command, the 19plus returns to the quiescent (sleep) state.
If in quiescent state, re-establish communications by pressing Connect on
the Toolbar or the Enter key to get an S> prompt.
If the 19plus is transmitting data and you want to stop it, press the
Esc key or Stop on the Toolbar (or type ^C). Press the Enter key to get the
S> prompt.
The 19plus cannot have samples with different scan lengths (more or
fewer data fields per sample) in memory. If the scan length is changed by
commanding it to add or subtract a data field (such as an external voltage),
the 19plus must initialize logging. Initializing logging sets the sample
number and cast number to 0, so the entire memory is available for
recording data with the new scan length. Initializing logging should only
be performed after all previous data has been uploaded. Therefore,
commands that change the scan length (MM, MP, PType=, Volt0=,
Volt1=, Volt2=, and Volt3=) prompt the user for verification before
executing, to prevent accidental overwriting of existing data.
The 19plus responds only to DS, DCal, TS, SL, SLT, QS, and Stop while
logging. If you wake the 19plus while it is logging (for example, to send
DS to check on logging progress), it temporarily stops logging. In Moored
mode, logging resumes when it goes to sleep again (either by sending QS
or after the 2-minute timeout). In Profiling mode, logging resumes
immediately.
The 19plus responds only to DS, DCal, TS, SL, SLT, QS, and Stop while
waiting to start logging (if you sent StartLater but logging has not
started yet). To send any other commands, send Stop, send the desired
commands to modify the setup, and then send StartLater again.
Entries made with the commands are permanently stored in the 19plus and
remain in effect until you change them.
•
The only exception occurs if the electronics are removed from the housing
and disconnected from the battery Molex connector (see Appendix II:
Electronics Disassembly/Reassembly). Upon reassembly, reset
the date and time (MMDDYY= and HHMMSS=) and initialize
logging (InitLogging).
36
Section 4: Deploying and Operating SBE 19plus
Status Command
Notes:
• Sending DS causes the pump to turn
on for a moment, so that the 19plus
can measure and output the pump
current. Because the pump is
designed to be water lubricated, you
will hear a noise when the impeller
spins in air. Running the pump dry
for such a short time will not harm
the pump.
• In the examples below, only voltage
channel 0 is enabled, so external
voltage current iext23= is
not shown.
• If the 19plus is set up with a WET
Labs ECO-FL fluorometer with BioWiper (Biowiper=Y), the DS reply
shows: wait 4 seconds for
biowiper to close before it
measures the enabled external
voltage currents.
• If the 19plus is set up for alkaline or
lithium batteries, the status
command shows:
battery type = ALKALINE.
• If your 19plus includes a custom
RS-232 connector for an SBE 38 or
GTD, see Addendum: Custom
SBE 19plus SEACAT with Interface
for RS-232 Sensor.
DS
Display operating status and setup
parameters, which vary depending on
whether in Profiling or Moored mode.
Equivalent to Status on Toolbar.
List below includes, where applicable,
command used to modify parameter.
Profiling Mode (MP)
• Firmware version, serial number, date
and time [MMDDYY= and HHMMSS=]
• Voltages and currents (main and lithium
battery voltages, operating and pump current,
and external voltage currents)
• Logging status (not logging, logging, waiting
to start at . . ., or unknown status)
• Number of scans to average [NAvg=]
• Number of samples, sample space, and
number of casts in memory
• Profiling mode [MP], minimum conductivity
frequency for pump turn-on
[MinCondFreq=], and
pump turn-on delay [PumpDelay=]
• Begin logging automatically when external
power applied [AutoRun=]?
Ignore magnetic switch position for
starting/stopping logging [IgnoreSwitch=]?
• Battery type [BatteryType=] and
cut-off voltage
• Pressure sensor type [PType=] and
range [PRange=]
• Sample SBE 38 secondary temperature
sensor or Gas Tension Device? (yes for
custom applications only)
• Sample external voltages 0, 1, 2, and 3?
[Volt0= through Volt3=]
• Show entered commands on screen as
you type [Echo=]?
• Output format [OutputFormat=]
• Output salinity [OutputSal=] and sound
velocity [OutputSV=] with each sample?
(only if output format = converted decimal)
• Output sigma-t, voltage, and current with
each sample? [OutputUCSD=]
(only if output format = converted decimal;
only appears in response if set to Y)
Example: Profiling mode (user input shown in bold, command used to modify parameter in parentheses)
S>DS
SeacatPlus V 1.5 SERIAL NO. 4000
22 May 2005 14:02:13
[MMDDYY=, HHMMSS=]
vbatt = 9.6, vlith = 8.6, ioper = 61.2 ma, ipump = 25.5 ma, iext01 = 76.2 ma,
status = not logging
number of scans to average = 1
[NAvg=]
samples = 0, free = 381300, casts = 0
mode = profile, minimum cond freq = 3000, pump delay = 60 sec
[MP, MinCondFreq=, PumpDelay=]
autorun = no, ignore magnetic switch = no
[AutoRun=, IgnoreSwitch=]
battery type = ALKALINE, battery cutoff = 7.3 volts
[BatteryType=]
pressure sensor = strain gauge, range = 1000.0
[PType=, PRange=]
SBE 38 = no, Gas Tension Device = no
(yes for custom applications only)
Ext Volt 0 = yes, Ext Volt 1 = no, Ext Volt 2 = no, Ext Volt 3 = no
[Volt0= through Volt3=]
echo commands = yes
[Echo=]
output format = converted decimal
[OutputFormat=]
output salinity = no, output sound velocity = no
[OutputSal=, OutputSV=]
37
Section 4: Deploying and Operating SBE 19plus
Status Command (continued)
Moored Mode (MM)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Firmware version, serial number, date
and time [MMDDYY= and HHMMSS=]
Voltages and currents (main and lithium
battery voltages, operating and pump
current, and external voltage currents)
Logging status (not logging, logging,
waiting to start at . . ., or unknown status)
Sample interval [SampleInterval=] and
number of measurements to take and
average per sample [NCycles=]
Number of samples and available sample
space in memory
Moored mode [MM], pump turn-on
parameter [MooredPumpMode=], and
pump turn-on delay
[DelayBeforeSampling=]
Transmit data real-time?
[MooredTxRealTime=]
Battery type [BatteryType=] and battery
cut-off voltage
Pressure sensor type [PType=] and
range [PRange=]
Sample SBE 38 secondary temperature
sensor or Gas Tension Device? (yes for
custom applications only)
Sample external voltages 0, 1, 2, and 3?
[Volt0= through Volt3=]
Show entered commands on screen as
you type [Echo=]?
Output format [OutputFormat=]
Output salinity [OutputSal=] and sound
velocity [OutputSV=] with each sample?
(only if output format = converted
decimal)
Output sigma-t, voltage, and current with
each sample? [OutputUCSD=]
(only if output format = converted
decimal; only appears in response if set
to Y)
Example: Moored mode (user input shown in bold, command used to modify parameter in parentheses)
S>DS
SeacatPlus V 1.5 SERIAL NO. 4000
22 May 2005 14:02:13
[MMDDYY=, HHMMSS=]
vbatt = 9.4, vlith = 8.6, ioper = 61.3 ma, ipump = 26.8 ma, iext01 = 76.2 ma,
status = not logging
sample interval = 15 seconds, number of measurements per sample = 1
[SampleInterval=, NCycles=]
samples = 0, free = 364722
mode = moored, run pump for 0.5 sec, delay before sampling = 0.0 seconds [MM, MOOREDPUMPMODE=, DELAYBEFORESAMPLING=]
transmit real-time = yes
[MooredTxRealTime=]
battery type = ALKALINE, battery cutoff = 7.3 volts
[BatteryType=]
pressure sensor = strain gauge, range = 2000.0
[PType=, PRange=]
SBE 38 = no, Gas Tension Device = no
(yes for custom applications only)
Ext Volt 0 = yes, Ext Volt 1 = no, Ext Volt 2 = no, Ext Volt 3 = no
[Volt0= through Volt3=]
echo commands = yes
[Echo=]
output format = converted decimal
[OutputFormat=]
output salinity = no, output sound velocity = no
[OutputSal=, OutputSV=]
38
Section 4: Deploying and Operating SBE 19plus
General Setup Commands
Notes:
• DDMMYY= and MMDDYY= are
equivalent. Either can be used to
set the date.
• Always set date and then time.
If a new date is entered but not a
new time, the new date will not
be saved. If a new time is
entered without first entering a
new date, the date will reset to
the last date it was set for with
MMDDYY= or DDMMYY=.
MMDDYY=mmddyy
Set real-time clock month, day, and year.
Must be followed by HHMMSS= to
set time.
DDMMYY=ddmmyy
Set real-time clock day, month, and year.
Must be followed by HHMMSS= to
set time.
HHMMSS=hhmmss
Set real-time clock hour, minute,
and second.
Example: Set current date and time to 05 October 2004 12:00:00
(user input shown in bold).
S>MMDDYY=100504
S>HHMMSS=120000
or
S>DDMMYY=051004
S>HHMMSS=120000
Note:
The 19plus baud rate (set with
Baud=) must be the same as
SEATERM’s baud rate (set in the
Configure menu).
Baud=x
x= baud rate (600, 1200, 2400, 4800,
9600, 19200, or 38400). Default 9600.
Echo=x
x=Y: Echo characters received from
computer (default) - computer monitor
will show entered commands as you type.
x=N: Do not.
Note:
If the 19plus is set up for alkaline or
lithium batteries, the status
command (DS) response shows:
battery type = ALKALINE.
BatteryType=x
x=ALKALINE: Alkaline (or lithium)
batteries. Logging stops when voltage
drops below 7.3 volts for 5 consecutive
scans. This reduces battery load to
quiescent current.
x=NICAD: Ni-Cad batteries. Logging
stops when voltage drops below 7.3 volts
for 5 consecutive scans or voltage is less
than 10.9 volts and voltage drop is greater
than 0.5 volts/minute as determined by
two 30-second moving averages. This
reduces battery load to quiescent current
once first cell in battery pack is exhausted.
x=NIMH: NiMH batteries. Logging stops
when voltage drops below 7.8 volts for
5 consecutive scans or voltage is less than
8.7 volts and voltage drop is greater than
0.2 volts/minute as determined by two 30second moving averages. This reduces
battery load to quiescent current once first
cell in battery pack is exhausted.
39
Section 4: Deploying and Operating SBE 19plus
Notes:
• InitLogging and SampleNumber=0
have identical effects. Use either
to initialize logging.
• Initializing logging sets sample,
header, and cast number to 0
internally. However, for data
output, the first sample, header,
and cast number is 1.
• Do not initialize logging until
all data has been uploaded.
These commands do not delete
data; they reset the data pointer.
If you accidentally initialize
logging before uploading,
recover data as follows:
1. Set SampleNumber=a and
HeaderNumber=b, where a and b
are your estimate of number of
samples and casts in memory.
2. Upload data. If a is more than
actual number of samples or b is
more than actual number of casts
in memory, data for non-existent
samples/casts will be bad, random
data. Review uploaded data file
carefully and delete any bad data.
3. If desired, increase a and/or b and
upload data again, to see if there is
additional valid data in memory.
General Setup Commands (continued)
InitLogging
Initialize logging - after all previous data
has been uploaded, initialize logging
before starting to sample again to make
entire memory available for recording.
InitLogging sets sample number
(SampleNumber=) and header and cast
number (HeaderNumber=) to 0
internally. If not set to 0, data will be
stored after last recorded sample. Do not
send InitLogging until all existing data
has been uploaded.
SampleNumber=x
x= sample number for first sample when
logging begins. After all previous data has
been uploaded, send SampleNumber=0
(sets sample, header, and cast number to 0
internally) before starting to sample to
make entire memory available for
recording. If not set to 0, data will be
stored after last recorded sample. Do not
send SampleNumber=0 until all existing
data has been uploaded.
HeaderNumber=x
x= header and cast number for first cast
when Profiling Mode logging begins or
first header when Moored Mode logging
begins. Typically used to recover data if
you accidentally initialize logging (using
InitLogging or SampleNumber=0)
before uploading all existing data. Note
that 19plus writes new header:
- each time logging is started in
Profiling Mode
- each time logging is started and/or after
every 1000 samples are stored in memory
in Moored Mode.
FlashInit
Map bad blocks and erase FLASH memory,
destroying all data. 19plus requires you to
enter command twice, to provide
verification before it proceeds. All data bits
are set to 1. Sample number, header number,
and data pointers are set to 0.
Allow 15 minutes for process.
Send FlashInit (after uploading all data) if
there are FLASH Read errors in Status (DS)
response. If not encountering errors,
FlashInit is optional, as 19plus writes over
recorded information when InitLogging is
used before beginning logging. However,
knowledge of initial memory contents (i.e.,
all 1’s) can be useful cross-check when data
is retrieved.
QS
Quit session and place 19plus in quiescent
(sleep) state. Main power turned off. Data
logging and memory retention not affected.
40
Section 4: Deploying and Operating SBE 19plus
Notes:
• The 19plus requires verification
when these commands (PType=
through Volt3=) are sent.
19plus responds:
Sensor Setup Commands
PType=x
Pressure sensor type.
x=1: Strain-gauge.
x=0: No pressure sensor (not applicable
to 19plus).
this command will change the
scan length and initialize
logging. Proceed Y/N?
Press Y and the Enter key
to proceed. The 19plus responds:
x=2: Quartz without temperature
compensation (not applicable to 19plus).
Scan length has changed,
initializing logging
x=3: Quartz with temperature
compensation (not applicable to 19plus).
• The 19plus configuration (.con) file
must match this selection of
pressure sensor and external
voltages when viewing real-time
data in SEASAVE or processing
uploaded data. View and edit the
.con file in SEASAVE or SBE Data
Processing. Note that these
parameters are factory-set to
match the ordered instrument
configuration.
• External voltage numbers 0, 1, 2,
and 3 correspond to wiring of
sensors to a voltage channel on
the 19plus end cap (see
Dimensions and End Cap
Connectors in Section 2:
Description of SBE 19plus).
However, in the .con file, voltage 0
is the first external voltage in the
data stream, voltage 1 is the
second, etc.
Volt0=x
x=Y: Enable external voltage 0.
x=N: Do not.
Volt1=x
x=Y: Enable external voltage 1.
x=N: Do not.
Volt2=x
x=Y: Enable external voltage 2.
x=N: Do not.
Volt3=x
x=Y: Enable external voltage 3. Volt3=Y
is required if PAR sensor connected to
optional PAR connector on 19plus.
x=N: Do not.
Example: Enable voltage sensors wired to channels 0 and 3 on end cap
(user input shown in bold).
S>VOLT0=Y
S>VOLT1=N
S>VOLT2=N
S>VOLT3=Y
There will be 2 external sensor voltages in data stream. In .con file (in
SBE Data Processing or SEASAVE), indicate 2 external voltage
channels. Voltage 0 corresponds to sensor wired to external voltage
channel 0; voltage 1 corresponds to sensor wired to external voltage
channel 3.
x=Y: Configuration includes WET Labs
ECO-FL fluorometer with Bio-Wiper.
With this setup, 19plus is powered longer
for DS command, providing sufficient
time for Bio-Wiper to open and then
shut again if in Moored mode if Bio-Wiper
is set up to take 1 measurement for
each sample (see Application Note 72
for details).
Biowiper=x
Note:
If an ECO-FL with Bio-Wiper is
installed and Biowiper=N, sending
DS will open the Bio-Wiper, but not
provide enough powered time to
close it again. If you then deploy
the instrument in Moored mode
(MM) with the Bio-Wiper open and
with a delayed start time, the ECOFL may become fouled because the
Bio-Wiper will remain open until the
first sample is completed.
x=N (default): Configuration does not
include ECO-FL with Bio-Wiper.
41
Section 4: Deploying and Operating SBE 19plus
Output Format Commands
Note:
Output format does not affect how
data is stored in FLASH memory.
Sea-Bird’s real-time data acquisition
(SEASAVE) and data processing
(SBE Data Processing) software
require data in raw hexadecimal
(OutputFormat=0).
OutputFormat=x
Typical use of the output format
command is:
• Before beginning a cast:
¾ If you will use SEASAVE to
view real-time data - Set output
format to raw hex.
¾ If you will use SEATERM to
view real-time data - Set output
format to converted decimal for
ease in viewing real-time data.
• After the cast is complete, use
SEATERM’s Upload button to
upload data from memory. This
automatically resets the format to
raw hex (OutputFormat=0),
so the data is compatible with
SBE Data Processing.
x=0: Output raw frequencies and voltages
in hexadecimal. Must use this format for
acquiring and viewing real-time data in
SEASAVE. When using SEATERM’s
Upload button, SEATERM sends
OutputFormat=0, causing 19plus to
upload data from memory in raw hex,
regardless of user-programmed
OutputFormat.
x=1: Output converted (engineering units)
data in hexadecimal.
x=2: Output raw frequencies and voltages
in decimal.
x=3: Output converted (engineering units)
data in decimal. Required to output
salinity, sound velocity, sigma-t, battery
voltage, or operating current.
x=4: Output pressure and scan number
only, in hexadecimal. Typically used only
for interfacing with Auto Fire Module
(AFM) and SBE 32 Carousel Water
Sampler or with SBE 55 ECO Water
Sampler.
OutputSal=x
x=Y: Calculate and output salinity (psu).
Only applies if OutputFormat=3.
x=N: Do not.
OutputSV=x
x=Y: Calculate and output sound velocity
(m/sec), using Chen and Millero formula
(UNESCO Technical Papers in Marine
Science #44). Only applies if
OutputFormat=3.
x=N: Do not.
OutputUCSD=x
x=Y: Calculate and output density sigma-t
(kg/m3), battery voltage, and operating
current (mA) with data polled while
logging. Voltage and current measured
after delay before sampling, but before
sampling. Operating current measured and
output only if in Moored mode. Only
applies if OutputFormat=3.
x=N: Do not.
42
Section 4: Deploying and Operating SBE 19plus
Profiling Mode Setup Commands
Note:
The 19plus requires verification when
MP is sent. 19plus responds:
this command will change the
scan length and initialize
logging. Proceed Y/N?
Press Y and the Enter key to proceed.
19plus responds:
Profiling mode setup commands following MP apply to Profiling mode
only, and have no effect on operation if the SBE 19plus is in Moored mode.
MP
Set 19plus to Profiling mode.
MinCondFreq=x
x= minimum conductivity frequency (Hz)
to enable pump turn-on, to prevent pump
from turning on before 19plus is in water.
Pump stops when conductivity frequency
drops below MinCondFreq=. 19plus
Configuration Sheet lists uncorrected
(raw) frequency output at 0 conductivity.
Typical value (and factory-set default) for
MinCondFreq= for salt water and estuarine
application is:
(0 conductivity frequency + 500 Hz).
Typical value for MinCondFreq= for fresh
water applications is:
(0 conductivity frequency + 5 Hz).
PumpDelay=x
x= time (seconds) to wait after minimum
conductivity frequency (MinCondFreq=) is
reached before turning pump on. Pump
delay time allows time for Tygon tubing
and pump to fill with water after 19plus is
submerged. Typical value is 30 - 45
seconds.
Pump starts PumpDelay= seconds after
conductivity cell’s frequency output is
greater than MinCondFreq=.
Default 60 seconds.
IgnoreSwitch=x
x=Y: Do not start or stop logging based on
position of magnetic switch. Use
StartNow, StartLater, and Stop to
control logging.
Scan length has changed,
initializing logging.
Note:
See Pump Operation – Profiling Mode.
x=N: Do not ignore magnetic switch
position. Logging controlled by switch
position or by commands.
Notes:
To start sampling immediately
after you send AutoRun=Y
(if you were performing setup on
external power):
• Send QS to put 19plus in
quiescent (sleep) state, and then
turn external power off and then
on again. or
• Send StartNow.
AutoRun=x
x=Y: Start logging automatically when
external power applied; stop logging when
external power removed. Magnetic switch
position has no effect on logging.
x=N: Wait for command when external
power applied. Default.
NAvg=x
x= number of samples to average
(default 1, maximum 32,767). 19plus
samples at 4 Hz (every 0.25 seconds) and
averages NAvg samples; averaged data is
stored in FLASH memory and transmitted
real-time.
Example: 19plus samples every 0.25 seconds. If NAvg=2, 19plus averages data
from 2 samples (= 1 averaged data sample per 0.5 seconds), stores averaged data
in FLASH memory, and transmits averaged data real-time.
43
Section 4: Deploying and Operating SBE 19plus
Moored Mode Setup Commands
Note:
The 19plus requires verification when
MM is sent. 19plus responds:
this command will change the
scan length and initialize
logging. Proceed Y/N?
Press Y and the Enter key to proceed.
19plus responds: Scan length has
changed, initializing logging.
Moored mode setup commands following MM apply to Moored Mode
only, and have no effect on operation if the SBE 19plus is in Profiling mode.
MM
Set 19plus to Moored mode.
MooredTxRealTime=x
x=Y: Output real-time data.
x=N: Do not.
DelayBeforeSampling=x
Notes:
• Pump operation is affected by both
DelayBeforeSampling= and
MooredPumpMode=. See Pump
Operation – Moored Mode.
• NCycles= and
DelayBeforeSampling= affect the
time required to sample. If these are
too high, the 19plus is unable to take
the required number of
measurements and do the
calculations within SampleInterval=.
When it is beginning to log, the
19plus checks all parameters, and if
necessary it internally increases
SampleInterval=.
x= time (seconds) to wait after switching
on external voltage sensors before
sampling (0-32,000 seconds). Default
0 seconds. Typical values if using:
- SBE 43 oxygen sensor – time is
dependent on membrane thickness and
on water temperature. Use with
MooredPumpMode=2.
- Beckman- or YSI-type oxygen sensor –
120 to 180 seconds is required to provide
time for sensor to polarize.
Use with MooredPumpMode=2.
- Sea Tech fluorometer - 15 seconds
is required to provide time for sensor
to stabilize.
MooredPumpMode=x
x=0: No pump.
x=1: Run pump for 0.5 seconds before
each sample (typical for pumping through
conductivity cell only, with no auxiliary
sensors connected to plumbing).
x=2: Run pump during each sample
(typical for pumping through conductivity
cell and in-line auxiliary sensor).
SampleInterval=x
x= interval (seconds) between samples
(10 - 14,400 seconds).
NCycles=x
x= number of measurements to take and
average every SampleInterval seconds
(default = 1). 19plus takes and averages
NCycles samples (each 0.25 seconds
apart) each SampleInterval seconds;
averaged data is stored in FLASH memory
and (if MooredTxRealTime=Y)
transmitted real-time.
Example: If SampleInterval=10 and NCycles=4, every
10 seconds 19plus takes 4 samples (each 0.25 seconds apart), averages
data from 4 samples, and stores averaged data in FLASH memory.
44
Section 4: Deploying and Operating SBE 19plus
Logging Commands
Notes:
• In SEATERM, to save real-time data
to a file, click Capture on the Toolbar
before beginning logging.
• If the FLASH memory is filled to
capacity, data sampling and
transmission of real-time data
continue, but excess data is not
saved in memory.
• If the 19plus is sampling data and
the voltage is less than the cut-off
voltage (see BatteryType= for cutoff values for various battery types),
the 19plus halts logging and displays
WARNING: LOW BATTERY
VOLTAGE.
Logging commands direct the SBE 19plus to sample data. When commanded
to start sampling, the 19plus takes samples and stores the data in its FLASH
memory. Operation is dependent on the mode and setup.
Profiling Mode (MP)
While logging, the 19plus transmits real-time data, and does not enter
quiescent (sleep) state between samples. The 19plus provides several methods
for starting and stopping logging, depending on the settings for
IgnoreSwitch= and AutoRun=. Logging starts approximately 1-2 seconds
after it is commanded.
To Stop Logging:
Slide magnetic
switch off, send Stop,
or click Stop on
SEATERM’s
Toolbar.
AutoRun=
N
N
Slide magnetic
switch on.
N
Send StartNow, or
StartMMDDYY=,
StartHHMMSS=,
and StartLater.
Send Stop or click
Stop on SEATERM’s
Toolbar.
Turn on
external power.
• Turn off external
power, or
• (if you want to send
commands to check
or modify setup)
Send Stop, click
Stop on
SEATERM’s
Toolbar, or type
Ctrl Z.
Y
Note:
Sea-Bird ships the 19plus with
AutoRun=N (it will not automatically
start sampling when external power is
applied). If you send AutoRun=Y:
• Send QS to put 19plus in quiescent
(sleep) state, then turn power off and
then on again to start sampling,
or
• Send StartNow to start sampling.
To Start Logging:
IgnoreSwitch=
Y or N
Y
The first time logging is started after receipt of the initialize logging command
(InitLogging), data recording starts at the beginning of memory and any
previously recorded data is written over. When logging is stopped, recording
stops. Each time logging is started again, recording continues, with new data
stored after the previously recorded data and a new header written to indicate
the incremented cast number, date, time, and sample numbers contained in the
cast. The maximum number of casts that can be taken is 300.
Note:
For Moored mode, the magnetic switch
should be left off, but it has no effect
on logging. If the switch is turned on
while the 19plus is in quiescent state,
the CPU enters the awake state but
logging does not begin. If no
communications are established, the
19plus times out and enters quiescent
state after 2 minutes.
Moored Mode (MM)
While logging, the 19plus transmits real-time data if MooredTxRealTime=Y.
The 19plus enters quiescent (sleep) state between samples.
To start logging, use StartNow or StartLater. Logging starts
SampleInterval= seconds after receipt of StartNow. The first time logging is
started after receipt of the initialize logging command (InitLogging), data
recording starts at the beginning of memory and any previously recorded data
is written over. When Stop is sent, recording stops. Each time StartNow or
StartLater is sent again, recording continues, with new data stored after the
previously recorded data. A new header is written each time logging starts and
every 1000 samples thereafter.
45
Section 4: Deploying and Operating SBE 19plus
Logging Commands (continued)
Notes:
• StartDDMMYY= and
StartMMDDYY= are equivalent.
Either can be used to set the
delayed start date.
• If using StartNow or StartLater
to start logging, the 19plus must
be set to Moored mode (MM), or
if in Profiling mode (MP) must be
set to ignore the magnetic switch
(IgnoreSwitch=Y).
• After receiving StartLater, the
19plus displays
waiting to
start at . . . in reply to
DS. Once logging starts, the DS
reply displays
logging.
• If the delayed start date and time
has already passed when
StartLater is received, the
19plus executes StartNow.
StartNow
Start logging now.
StartMMDDYY=mmddyy
Set delayed logging start month, day,
and year. Must be followed by
StartHHMMSS= to set delayed
start time.
StartDDMMYY=ddmmyy
Set delayed logging start day, month,
and year. Must be followed by
StartHHMMSS= to set delayed
start time.
StartHHMMSS=hhmmss
Set delayed logging start hour, minute,
and second.
StartLater
Start logging at time set with delayed start
date and time commands.
Example: Program 19plus to start logging on 20 January 2005 12:00:00.
(user input shown in bold)
S>STARTMMDDYY=012005
S>STARTHHMMSS=120000
S>STARTLATER
or
S>STARTDDMMYY=200105
S>STARTHHMMSS=120000
S>STARTLATER
Notes:
• You may need to send Stop
several times to get the 19plus
to respond.
• If in Profiling mode and
IgnoreSwitch=N, slide the
magnetic switch off or send Stop
to stop logging.
• You must stop logging before
uploading data.
Stop
Stop logging or stop waiting to start
logging (if StartLater was sent
but logging has not begun yet).
Press Enter key to get S> prompt
before entering Stop.
46
Section 4: Deploying and Operating SBE 19plus
Data Upload Commands
Stop logging before uploading data.
Notes:
• Use Upload on the Toolbar or
Upload Data in the Data menu
to upload data that will be
processed by SBE Data
Processing. Manually entering
DDb,e does not produce data
with the required header
information for processing by our
software. These commands are
included here for reference for
users who are writing their
own software.
• To save data to a file, click
Capture on the Toolbar before
entering DDb,e, DCx, or DHb,e.
• See Data Output Formats.
DDb,e
Upload data from sample b to sample e.
If b and e are omitted, all data is uploaded.
First sample number is 1.
Example: Upload samples 1 - 199 to a file (user input shown in bold):
(Click Capture on Toolbar and enter desired filename in dialog box.)
S>DD1,199
DCx
Profiling mode only.
Upload data from cast x. If x is omitted,
data from cast 1 is uploaded.
First cast number is 1.
Example: Upload all data in second cast (cast 2) to a file (user input
shown in bold):
(Click Capture on Toolbar and enter desired filename in dialog box.)
S>DC2
DHb,e
Upload header b to header e. If b and e are
omitted, all headers are uploaded. First
header number is 1. Header includes:
• cast/header number
• month, day, hour, minute, and second
when cast was started
• first and last sample in cast/header
• Profiling mode only - number of
measurements to average per sample
(NAvg=)
• Moored mode only - interval
between samples (SampleInterval=)
• reason logging was halted
(batfail = battery voltage too low;
mag switch = switch turned off;
stop cmd = received Stop command
or Home or Ctrl Z character;
timeout = error condition;
unknown = error condition;
?????? = error condition)
Examples:
Profiling Mode - Upload second header (header for cast 2) to a file:
(Click Capture on Toolbar and enter desired filename in dialog box.)
S>DH2
19plus responds:
cast 2 30 Nov 2005 12:30:33 samples 35 to 87, avg = 4, stop = mag switch
Moored Mode - Upload second header to a file:
(Click Capture on Toolbar and enter desired filename in dialog box.)
S>DH2
19plus responds:
hdr 2 30 Nov 2005 12:30:33 samples 35 to 87, int = 10, stop = stop cmd
47
Section 4: Deploying and Operating SBE 19plus
Polled Sampling Commands
Notes:
• The 19plus has a buffer that
stores the most recent data
samples. Unlike data in the
FLASH memory, data in the
buffer is erased upon removal or
failure of power.
• Pump operation for polled
sampling is defined by
MooredPumpMode=, even if
your 19plus is set to Profiling
Mode (MP). Thus, the 19plus
ignores the minimum conductivity
frequency (MinCondFreq=) and
pump delay (PumpDelay=) for
polled sampling.
• Leave power on in SL, SLT, TS,
and TSSOn descriptions refers to
power for the 19plus as well as
for the pump and any auxiliary
sensors. Power remains on until
QS is sent or the instrument
times out (after 2 minutes).
These commands request a single sample. The 19plus always stores data for
the most recent sample in its buffer. Some polled sampling commands also
store data in FLASH memory - the 19plus will not execute the store data in
FLASH memory portion of those commands while logging data.
SL
Output last sample from buffer (obtained
with polled sampling, or latest sample
from logging), and leave power on.
SLT
Output last sample from buffer, then take
new sample and store data in buffer.
Leave power on. Data is not stored in
FLASH memory.
TS
Take new sample, store data in buffer,
output data, and leave power on. Data is
not stored in FLASH memory.
TSS
Take new sample, store data in buffer
and FLASH memory, output data, and
turn power off.
TSSOn
Take new sample, store data in buffer
and FLASH memory, output data, and
leave power on.
Testing Commands
Note:
Testing commands do not
automatically turn the pump on.
Thus, for instruments plumbed with
the pump, they report data from
essentially the same sample of
water for all 100 measurements,
because the pump does not run but
the pump and associated plumbing
prevent water from freely flowing
through the conductivity cell and
other plumbed sensors (for
example, dissolved oxygen sensor).
To get data from fresh samples,
send PumpOn before sending
a testing command, and then
send PumpOff when the test
is complete.
The 19plus takes and outputs 100 samples for each test (except as noted); data
is not stored in FLASH memory. Press the Esc key or Stop on the Toolbar to
stop a test.
TT
Measure temperature, output converted data.
TC
Measure conductivity, output converted data.
TP
Measure pressure, output converted data.
TV
Measure four external voltage channels,
output converted data.
TTR
Measure temperature, output raw data.
TCR
Measure conductivity, output raw data.
TPR
Measure pressure, output raw data.
TVR
Measure voltages read by A/D converter,
output raw data.
Column
1
2
3
4
5–8
Output
Main battery voltage / 11
Back-up lithium battery voltage / 3.741
External current / 333.33
Pressure temperature voltage
External voltages
PumpOn
Turn pump on for testing purposes. Use
this command:
• Before sending testing command to
obtain pumped data from sensors
plumbed with the pump, or
• To test pump.
PumpOff
Turn pump off for testing purposes.
48
Section 4: Deploying and Operating SBE 19plus
Calibration Coefficients Commands
Notes:
• Dates shown are when
calibrations were performed.
Calibration coefficients are
initially factory-set and should
agree with Calibration
Certificates shipped with 19plus.
• See individual Coefficient
Commands below for definitions
of the data in the example.
DCal
Display calibration coefficients.
Equivalent to Coefficients on Toolbar.
Example: Display coefficients for 19plus (user input shown in bold).
S>dcal
SeacatPlus V 1.5 SERIAL NO. 4000 22 May 2005 14:46:05
temperature: 20-jul-04
TA0 = -3.178124e-06
TA1 = 2.751603e-04
TA2 = -2.215606e-06
TA3 = 1.549719e-07
TOFFSET = 0.000000e+00
conductivity: 20-jul-04
G = -9.855242e-01
H = 1.458421e-01
I = -3.290801e-04
J = 4.784952e-05
CF0 = 2.584100e+03
(not used in calculations; ignore)
CPCOR = -9.570000e-08
CTCOR = 3.250000e-06
CSLOPE = 1.000000e+00
pressure S/N , range = 2000 psia: 14-jul-04
PA0 = 0.000000e+00
PA1 = 0.000000e+00
PA2 = 0.000000e+00
PTEMPA0 = 0.000000e+00
PTEMPA1 = 0.000000e+00
PTEMPA2 = 0.000000e+00
PTCA0 = 0.000000e+00
PTCA1 = 0.000000e+00
PTCA2 = 0.000000e+00
PTCB0 = 0.000000e+00
PTCB1 = 0.000000e+00
PTCB2 = 0.000000e+00
POFFSET = 0.000000e+00
(in decibars)
volt 0: offset = 0.000000e+00, slope = 1.000000e+00
volt 1: offset = 0.000000e+00, slope = 1.000000e+00
volt 2: offset = 0.000000e+00, slope = 1.000000e+00
volt 3: offset = 0.000000e+00, slope = 1.000000e+00
EXTFREQSF = 1.000000e+00
(not used in calculations; ignore)
49
Section 4: Deploying and Operating SBE 19plus
Calibration Coefficients Commands (continued)
Notes:
• F = floating point number
S = string with no spaces
• If using auxiliary A/D sensors
(Volt0= through Volt3=), their
calibration coefficients are not
stored in the 19plus EEPROM,
but are stored in the 19plus
configuration (.con) file. View
and/or modify the calibration
coefficients using the Configure
menu in SBE Data Processing or
the Configure Inputs menu in
SEASAVE.
The individual commands listed below are used to modify a particular
coefficient or date:
Temperature
TCalDate=S
TA0=F
TA1=F
TA2=F
TA3=F
TOffset=F
S=calibration date
F=A0
F=A1
F=A2
F=A3
F=offset correction
Conductivity
CCalDate=S
CG=F
CH=F
CI=F
CJ=F
CPCor=F
CTCor=F
CSlope=F
S=calibration date
F=G
F=H
F=I
F=J
F=pcor
F=tcor
F=slope correction
Pressure - General
PCalDate=S
PRange=F
POffset=F
S=calibration date
F=sensor full scale range (psia)
F=offset correction (decibars)
Strain-Gauge Pressure
PA0=F
PA1=F
PA2=F
PTempA0=F
PTempA1=F
PTempA2=F
PTCA0=F
PTCA1=F
PTCA2=F
PTCB0=F
PTCB1=F
PTCB2=F
F=A0
F=A1
F=A2
F=pressure temperature A0
F=pressure temperature A1
F=pressure temperature A2
F=pressure temperature compensation ptca0
F=pressure temperature compensation ptca1
F=pressure temperature compensation ptca2
F=pressure temperature compensation ptcb0
F=pressure temperature compensation ptcb1
F=pressure temperature compensation ptcb2
50
Section 4: Deploying and Operating SBE 19plus
Data Output Formats
Note:
If your 19plus includes a custom
RS-232 connector for an SBE 38 or
GTD, see Addendum: Custom
SBE 19plus SEACAT with Interface
for RS-232 Sensor.
Note:
Moored mode - For date and time
output, time is the time at the start of
the sample, after:
• a small amount of time
(1 to 2 seconds) for the 19plus to
wake up and prepare to sample,
and
• any programmed
DelayBeforeSampling=.
For example, if the 19plus is
programmed to wake up and
sample at 12:00:00, and
DelayBeforeSampling=20, the
output time for the first sample will be
12:00:21 or 12:00:22.
The SBE 19plus stores data in a compact machine code. Data is converted and
output in the user-selected format without affecting data in memory. Because
memory data remains intact until deliberately overwritten, you can upload in
one format, then choose another format and upload again.
Output format is dependent on OutputFormat= (0, 1, 2, 3, or 4), as detailed
below. The inclusion of some data is dependent on the system configuration if the system does not include the specified sensor, the corresponding data is
not included in the output data stream, shortening the data string.
OutputFormat=0 (raw frequencies and voltages in Hex)
Data is output in the order listed, with no spaces or commas between
parameters. Shown with each parameter is the number of digits, and how to
calculate the parameter from the data (use the decimal equivalent of the hex
data in the equations).
1.
2.
3.
Notes:
• If you will be using SEASAVE to
acquire real-time data, you must
set OutputFormat=0.
• When using SEATERM’s Upload
button, SEATERM sends
OutputFormat=0. This causes the
19plus to upload data in memory in
raw hex, regardless of the userprogrammed format, providing the
data in a format that SBE Data
Processing can use.
• Our software uses the equations
shown to perform these
calculations; alternatively, you can
use the equations to develop your
own processing software.
• The pressure sensor is an absolute
sensor, so its raw output includes
the effect of atmospheric pressure
(14.7 psi). As shown on the
Calibration Sheet, Sea-Bird’s
calibration (and resulting calibration
coefficients) is in terms of psia.
However, when outputting pressure
in engineering units, the 19plus
outputs pressure relative to the
ocean surface (i.e., at the surface
the output pressure is 0 decibars).
The 19plus uses the following
equation to convert psia
to decibars:
pressure (db) =
[pressure (psia) - 14.7] * 0.689476
4.
5.
6.
7.
8.
9.
Temperature
A/D counts = tttttt
Conductivity
conductivity frequency (Hz) = cccccc / 256
Pressure
A/D counts = pppppp
Pressure sensor temperature compensation
pressure temperature compensation voltage = vvvv / 13,107
External voltage 0 (if Volt0=Y)
external voltage 0= vvvv / 13,107
External voltage 1 (if Volt1=Y)
external voltage 1 = vvvv / 13,107
External voltage 2 (if Volt2=Y)
external voltage 2 = vvvv / 13,107
External voltage 3 (if Volt3=Y)
external voltage 3 = vvvv / 13,107
Time (Moored mode [MM] only)
seconds since January 1, 1980 = ssssssss
Example: Profiling mode, 2 external voltages sampled,
example scan = ttttttccccccppppppvvvvvvvvvvvv
= 0A53711BC7220C14C17D8203050594
•
•
•
•
•
•
Temperature = tttttt = 0A5371 (676721 decimal);
temperature A/D counts = 676721
Conductivity = cccccc = 1BC722 (1820450 decimal);
conductivity frequency = 1820450 / 256 = 7111.133 Hz
Pressure = pppppp = 0C14C1 (791745 decimal);
pressure A/D counts = 791745
Pressure sensor temperature compensation =
vvvv = 7D82 (32,130 decimal);
Pressure temperature = 32,130 / 13,107 = 2.4514 volts
First external voltage = vvvv = 0305 (773 decimal);
voltage = 773 / 13,107 = 0.0590 volts
Second external voltage = vvvv = 0594 (1428 decimal);
voltage = 1428 / 13,107 = 0.1089 volts
51
Section 4: Deploying and Operating SBE 19plus
OutputFormat=1 (engineering units in Hex)
Data is output in the order listed, with no spaces or commas between the
parameters. Shown with each parameter is the number of digits, and how to
calculate the parameter from the data (use the decimal equivalent of the hex
data in the equations).
1.
2.
3.
4.
5.
6.
7.
8.
Temperature
temperature (°C, ITS-90) = (tttttt / 100,000) - 10
Conductivity
Conductivity (S/m) = (cccccc / 1,000,000) - 1
Pressure
pressure (decibars) = (pppppp / 1,000) - 100
External voltage 0 (if Volt0=Y)
external voltage 0= vvvv / 13,107
External voltage 1 (if Volt1=Y)
external voltage 1 = vvvv / 13,107
External voltage 2 (if Volt2=Y)
external voltage 2 = vvvv / 13,107
External voltage 3 (if Volt3=Y)
external voltage 3 = vvvv / 13,107
Time (Moored mode [MM] only)
seconds since January 1, 1980 = ssssssss
Example: Profiling mode, 2 external voltages sampled,
example scan = ttttttccccccppppppvvvvvvvv
= 3385C40F42FE0186DE03050594
•
•
•
•
•
Temperature = tttttt = 3385C4 (3376580 decimal);
temperature (°C, ITS-90) = (3376580 / 100,000) - 10 = 23.7658
Conductivity = cccccc = 0F42FE (1000190 decimal);
conductivity (S/m) = (1000190 / 1,000,000) - 1 = 0.00019
Pressure = pppppp = 0186DE (100062 decimal);
pressure (decibars) = (100062 / 1,000) - 100 = 0.062
First external voltage = vvvv = 0305 (773 decimal);
voltage = 773 / 13,107 = 0.0590 volts
Second external voltage = vvvv = 0594 (1428 decimal);
voltage = 1428 / 13,107 = 0.1089 volts
52
Section 4: Deploying and Operating SBE 19plus
OutputFormat=2 (raw frequencies and voltages in decimal)
Data is output in the order listed, with a comma followed by a space between
each parameter. Shown with each parameter are the number of digits and the
placement of the decimal point. Leading zeros are suppressed, except for one
zero to the left of the decimal point.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Temperature
A/D counts = tttttt
Conductivity
conductivity frequency (Hz) = cccc.ccc
Pressure
A/D counts = pppppp
Pressure sensor temperature compensation
pressure temperature compensation voltage = v.vvvv
External voltage 0 (if Volt0=Y)
external voltage 0= v.vvvv
External voltage 1 (if Volt1=Y)
external voltage 1 = v.vvvv
External voltage 2 (if Volt2=Y)
external voltage 2 = v.vvvv
External voltage 3 (if Volt3=Y)
external voltage 3 = v.vvvv
Time (Moored mode [MM] only)
date, time = dd mmm yyyy, hh:mm:ss (day month year hour:minute:second)
Example: Profiling mode with 2 external voltages sampled,
example scan = tttttt, cccc.ccc, pppppp, v.vvvv, v.vvvv, v.vvvv
= 676721, 7111.133, 791745, 2.4514, 0.0590, 0.1089
•
•
•
•
•
•
Temperature = tttttt = 676721;
temperature A/D counts = 676721
Conductivity = cccc.ccc = 7111.133;
conductivity frequency = 7111.133 Hz
Pressure = pppppp = 791745;
Pressure A/D counts = 791745
Pressure sensor temperature compensation = v.vvvv = 2.4514;
Pressure temperature = 2.4514 volts
First external voltage = v.vvvv = 0.0590;
voltage = 0.0590 volts
Second external voltage = v.vvvv = 0.1089;
voltage = 0.1089 volts
53
Section 4: Deploying and Operating SBE 19plus
OutputFormat=3 (engineering units in decimal)
Data is output in the order listed, with a comma followed by a space between
each parameter. Shown with each parameter are the number of digits and the
placement of the decimal point. Leading zeros are suppressed, except for one
zero to the left of the decimal point.
Uploaded Data (from DDb,e)
1.
Temperature
temperature (°C, ITS-90) = ttt.tttt
2. Conductivity
Conductivity (S/m) = cc.ccccc
3. Pressure
pressure (decibars) = pppp.ppp
4. External voltage 0 (if Volt0=Y)
external voltage 0= v.vvvv
5. External voltage 1 (if Volt1=Y)
external voltage 1 = v.vvvv
6. External voltage 2 (if Volt2=Y)
external voltage 2 = v.vvvv
7. External voltage 3 (if Volt3=Y)
external voltage 3 = v.vvvv
8. Salinity (if OutputSal=Y)
salinity (psu) = sss.ssss
9. Sound velocity (if OutputSV=Y)
sound velocity (meters/second) = vvvv.vvv
10. Time (Moored mode [MM] only)
date, time = dd mmm yyyy, hh:mm:ss (day month year hour:minute:second)
Example: Profiling mode with 2 external voltages sampled,
example scan = ttt.tttt, cc.ccccc, pppp.ppp, v.vvvv, v.vvvv
= 23.7658, 0.00019, 0.062, 0.0590, 0.1089
•
•
•
•
•
Temperature = ttt.tttt = 23.7658;
temperature (°C, ITS-90) = 23.7658
Conductivity = cc.ccccc = 0.00019;
conductivity (S/m) = 0.00019
Pressure = pppp.ppp = 0.062;
pressure (decibars) = 0.062
First external voltage = v.vvvv = 0.0590;
voltage = 0.0590 volts
Second external voltage = v.vvvv = 0.1089;
voltage = 0.1089 volts
Polled Data from SL, SLT, TS, TSS, or TSSOn:
If OutputUCSD=Y and the 19plus is logging (autonomous sampling is in
progress), data is followed by density sigma-t in kg/m3 (ddd.dddd), battery
voltage (vv.v), and operating current in mA (ccc.c), each separated by a
comma and a space (operating current measured and output only if in Moored
mode). The rest of the data stream is as described above for uploaded data.
54
Section 4: Deploying and Operating SBE 19plus
OutputFormat=4 (pressure and scan number in Hex)
Data is output in the order listed, with no spaces or commas between
parameters. Shown with each parameter is the number of digits, and how to
calculate the parameter from the data (use the decimal equivalent of the hex
data in the equations).
The 19plus is automatically set to OutputFormat=4 when
communicating with:
• Auto Fire Module (AFM) used with an SBE 32 Carousel Water
Sampler - This allows the AFM to use the 19plus pressure data to
determine when to close SBE 32 Carousel water bottles.
• SBE 55 ECO Water Sampler - This allows the SBE 55 to use the 19plus
pressure data to determine when to close its water bottles.
1.
2.
Pressure
pressure (decibars) = pppp - 100
Scan number = ssssss
Example: 19plus used with AFM and Carousel,
example scan = ppppssssss
= 00C80001F0
•
•
Pressure = pppp = 00C8 (200 decimal);
pressure (decibars) = 200 - 100 = 100 decibars
Scan number = ssssss = 0001F0 (496 decimal);
scan number = 496
55
Section 4: Deploying and Operating SBE 19plus
Optimizing Data Quality for Profiling Applications
Our deployment recommendations are only general guidelines, and are
focused primarily on maximizing data quality. Actual sea state conditions, and
winch and deck gear configurations, may require some adaptation in order to
achieve best data quality and avoid mechanical problems.
The SBE 19plus is optimized for profiling rates of 0.5 to 2 meters/second, with
1 meter/second generally providing the best compromise between data quality
and profile resolution. The 19plus pump maintains a constant and optimum
flow rate, which ensures that the sensor response times are not dependent on
the profiling rate. Adjust the profiling rate of the 19plus based on the amount
of ship motion (i.e., sea state) imparted to the cable, and the size, weight, and
drag of the underwater package at the end of the cable. Generally, use a faster
rate in rougher seas, allowing the 19plus to stay clear of turbulent wakes that
are shed downward when the ship heaves up; shed wakes are an error source
from which all CTDs suffer. When the sea is very calm, the 19plus can be
lowered more slowly (for example, 10 to 20 cm/second) to give greater
vertical resolution.
Like for other CTDs, the common configurations of the 19plus are intended
for obtaining downcast data, because the sensors are oriented so that the T-C
Duct inlet passes through relatively undisturbed water as the CTD is lowered.
As the CTD is raised (upcast), the sensors sample the turbulent wake of the
package, resulting in lower quality data. If planning to sample on the upcast,
consider the following:
• Vertical orientation – In the typical, sensors-down configuration, the
sensors are in the wake of the housing on the upcast, providing poor data
quality. If you must have good quality upcast data, invert the 19plus so
that the T-C Duct is at the top (ignore the downcast data for this
configuration).
• Horizontal orientation (for example, under SBE 32 Carousel Water
Sampler) - Position other instruments, sample bottles, etc. so that they are
not directly above the T & C sensors and do not thermally contaminate the
water that flows to the sensors at the T-C Duct inlet.
When a 19plus is installed on a water sampler, good conductivity and optional
dissolved oxygen data can be collected, even when stopped to collect a water
sample, because water continues to flow through the sensors at a fixed and
optimal rate.
Whether sampling on the upcast and/or downcast, position the T-C Duct
inlet so that other instruments, sample bottles, etc. do not thermally
contaminate the water that flows past the sensors.
Note:
See Pump Operation – Profiling
Mode for information on the minimum
soak time required to ensure proper
pump operation.
Where the water temperature is very different from the temperature at which
the 19plus has been stored, better results are obtained if the 19plus is allowed
to equilibrate to the water temperature at the surface (soak) for several
(3 – 5) minutes before beginning the profile. The reason is not that the
electronics are temperature sensitive - they are not - but that the thermal
influence of the instrument housing on the water entering the cell will be
reduced. If the difference between water and storage temperature is extreme,
allow more soak time.
56
Section 4: Deploying and Operating SBE 19plus
When very heavy seas cause severe ship motion, the 19plus descent can
actually stop or reverse direction if the ship heaves upward faster than the
package can descend. These occurrences can often be seen as loops in the realtime temperature trace. If the winch payout rate is too high, a loop of wire can
form under water when the package descent is slowed or reversed by ship
heave and the winch is still paying out wire. Inevitably, the loop formation
gets out of phase with the heave and the loop closes on itself when the ship
heaves, causing a kink. If the package includes a Carousel Water Sampler as
well as the CTD, the package creates much more drag than with only the CTD,
further increasing the possibility that a loop will form in the cable. After
1000 to 2000 meters of cable are paid out, it can be difficult or impossible to
detect a loop in the cable. Adding 100 to 200 kg (maybe more by
experimentation) of lead weights to the Carousel frame will help overcome the
effect of drag, and allow the package to descend faster and stay more in line
directly below the overboarding sheave.
Spiking is sometimes seen in the derived values for salinity, density, or sound
velocity. Spiking results largely from a response time mismatch of the
conductivity and temperature sensors, especially when the profiling descent
rate is non-uniform. The greatest reduction in spiking is found by using
premium CTD equipment such as the SBE 9plus, which uses very fast sensors
(0.07 second) and high speed (24 Hz) parallel signal acquisition. The 19plus
static accuracy is the same as that of the 9plus, but its dynamic responses are
not as ideal, as a result of its simpler, less costly, and more compact design.
Much of the spiking can be removed from the data set by aligning the data in
time. This alignment can be performed when post-processing the data in
SBE Data Processing.
Note:
See the SBE Data Processing
manual for information on data
processing modules that can correct
data for the influences of ship motion
and minimize salinity spiking.
The amount of spiking depends on the temperature gradient, and is much
worse when coupled surface motion causes the instrument to stop - or even
reverse - its descent. In the event of heavy ship motion, it may be worth letting
the instrument free-fall. When very heavy seas cause severe ship motion and
result in periodic reversals of the instrument descent, the data set can be
greatly improved by removing scans taken when the pressure is not increasing,
using SBE Data Processing.
57
Section 4: Deploying and Operating SBE 19plus
Installing Anti-Foul Fittings for Moored Applications
The SBE 19plus is intended primarily for use as a profiling instrument, and
does not come standard with anti-foulant device cups and caps. Some
customers, finding that they use the 19plus in Moored mode on occasion,
choose to install the optional moored mode conversion kit, which includes
anti-foulant device cups and caps.
Intake anti-foulant
device cup
Exhaust anti-foulant
device cup
Exhaust anti-foulant
device cap (barbed) for
pumped applications
Intake anti-foulant device
cap for all applications
and exhaust cap for
non-pumped applications
Note: The larger diameter of the intake cap /
non-pumped application exhaust cap helps
maintain good flow through the conductivity
cell and reduces growth of biological
material. Do not use the barbed cap in
its place.
Hole for thermistor
1.
On pumped applications, remove the Tygon tubing from the
existing conductivity cell exhaust duct.
2.
Remove the four Phillips-head screws attaching the conductivity cell
guard to the housing and end cap. Carefully remove the conductivity
cell guard.
3.
Exhaust –
A. On the conductivity cell guard, remove the two small screws
attaching the exhaust duct to the guard.
B. Remove the existing exhaust duct and replace with the exhaust antifoulant device cup, reinstalling the two screws.
C. See Replacing Anti-Foulant Devices in Section 5: Routine
Maintenance and Calibration for details on handling and installing
the AF24173 Anti-Foulant Device.
D. Install the anti-foulant device cap to secure the Anti-Foulant Device
in the cup.
Conductivity cell guard
Exhaust
Intake
Remove screws, typical both sides
Exhaust anti-foulant device cup
58
Section 4: Deploying and Operating SBE 19plus
4.
Intake –
A. Remove the two hex head screws attaching the existing intake duct to
the end cap.
B. Remove the existing intake duct, pulling it straight up to avoid
damaging the thermistor.
C. Check to ensure that the o-ring at the end of the conductivity cell is
still in place.
D. Place the intake anti-foulant device cup over the thermistor and
reinstall the hex head screws.
E. See Replacing Anti-Foulant Devices in Section 5: Routine
Maintenance and Calibration for details on handling and installing
the AF24173 Anti-Foulant Device.
F. Install the anti-foulant device cap to secure the Anti-Foulant Device
in the cup.
Conductivity cell
O-ring (typical both ends
of conductivity cell)
Intake anti-foulant
device cup
Thermistor
5.
Check the exhaust end of the conductivity cell to ensure that the o-ring is
still in place.
6.
Carefully reinstall the conductivity cell guard on the housing and end cap
using the four Phillips-head screws.
7.
If not deploying immediately, install a protective plug:
In the intake cap, and
(for a non-pumped application) In the exhaust cap.
8.
(for a pumped application) Reconnect the plumbing to the exhaust.
Note that the barbed exhaust cap has a smaller diameter than the standard
exhaust cap on the 19plus (which does not accommodate Anti-Foulant
Devices). When reconnecting the plumbing, place a 13 mm (0.5 inch)
long piece of Tygon tubing, 9.5 mm ID x 13 mm OD
(0.375 inch x 0.5 inch), on the barbed cap. Then reinstall the existing
plumbing, 13 mm ID x 19 mm OD (0.5 inch x 0.75 inch OD) over
the Tygon.
Plug
59
Section 4: Deploying and Operating SBE 19plus
Setup for Deployment
1.
Install new batteries or ensure the existing batteries have enough capacity
to cover the intended deployment (see Replacing/Recharging Batteries in
Section 5: Routine Maintenance and Calibration).
2.
Program the 19plus for the intended deployment using SEATERM (see
Section 3: Power and Communications Test for connection information;
see this section for commands):
Note:
Always set date and then time. If a
new date is entered but not a new
time, the new date will not be saved.
If a new time is entered without first
entering a new date, the date will
reset to the last date it was set for
with MMDDYY= or DDMMYY=.
A. Set the date and then time.
B. Ensure all data has been uploaded, and then send InitLogging to
make the entire memory available for recording. If InitLogging is not
sent, data will be stored after the last recorded sample.
C. Establish the setup and logging parameters. If you will be using
SEASAVE to acquire and view real-time data, you must set
OutputFormat=0 (raw hexadecimal).
D. Send DS to verify the setup.
E. If desired, use StartMMDDYY=, StartHHMMSS=, and StartLater
to establish delayed start date and time for Profiling mode (if
IgnoreSwitch=Y) or Moored mode.
Note:
When we ship a new instrument,
we include a .con file that reflects
the current instrument configuration
as we know it. The .con file is
named with the instrument serial
number, followed with the .con
extension. For example, for an
instrument with serial number 2375,
Sea-Bird names the .con file
2375.con. You may rename the
.con file if desired; this will not
affect the results.
3.
If you will be using SEASAVE to acquire and view real-time data, verify
that the configuration (.con) file matches the instrument configuration.
Sea-Bird supplies a .con file to match the factory configuration and
calibrations. If the instrument is recalibrated or the configuration
is changed (such as by adding external sensors), the .con file must
be updated to reflect the current condition. See Verifying Contents of
.con File.
4.
If you will be using SEATERM to view real-time data, click Capture on
the Toolbar to save the data to a file.
60
Section 4: Deploying and Operating SBE 19plus
Deployment
1.
CAUTION:
Do not use WD-40 or other
petroleum-based
lubricants, as they will
damage the connectors.
Optional
auxiliary input
connector
Install a cable or dummy plug for each connector on the 19plus sensor
end cap:
A. Lightly lubricate the inside of the dummy plug/cable connector with
silicone grease (DC-4 or equivalent).
B. Standard Connector - Install the plug/cable connector, aligning the
raised bump on the side of the plug/cable connector with the large pin
(pin 1 - ground) on the 19plus. Remove any trapped air by burping or
gently squeezing the plug/connector near the top and moving your
fingers toward the end cap. OR
MCBH Connector – Install the plug/cable connector, aligning
the pins.
C. Place the locking sleeve over the plug/cable connector. Tighten the
locking sleeve finger tight only. Do not overtighten the locking
sleeve and do not use a wrench or pliers.
Auxiliary
differential input
sensors (6 pin)
Pump power
(2 pin)
Data I/O (4 pin)
for real-time
data
Locking
sleeve
Dummy plug
or cable
2.
Connect the other end of the cables installed in Step 1 to the
appropriate sensors.
3.
Verify that the hardware and external fittings are secure.
4.
If applicable, remove the Tygon tubing that was looped end-to-end around
the conductivity cell for storage. Reconnect the system plumbing
(see Configuration Options and Plumbing in Section 2: Description of
SBE 19plus).
5.
Profiling mode - Immediately prior to deployment:
• (if IgnoreSwitch=N) Turn on the magnetic switch, or
• (if IgnoreSwitch=Y) If not already done, send StartNow or
StartMMDDYY=, StartHHMMSS=, and StartLater, or
• (if AutoRun=Y) With the 19plus in quiescent (sleep) state, apply
external power.
6.
Moored mode - If not already done, send StartNow or
StartMMDDYY=, StartHHMMSS=, and StartLater.
The SBE 19plus is ready to go into the water.
61
Section 4: Deploying and Operating SBE 19plus
Acquiring Real-Time Data with SEASAVE
Notes:
• When we ship a new instrument, we
include a .con file that reflects the
current instrument configuration as
we know it. The .con file is named
with the instrument serial number,
followed with the .con extension. For
example, for an instrument with
serial number 2375, we name the
.con file 2375.con. You may rename
the .con file if desired; this will not
affect the results.
• In the 19plus setup commands,
external voltage numbers 0, 1, 2,
and 3 correspond to wiring of
sensors to a voltage channel on the
end cap (see Dimensions and End
Cap Connectors in Section 2:
Description of SBE 19plus).
However, in the .con file, voltage 0 is
the first external voltage in the data
stream, voltage 1 is the second, etc.
• SEASAVE and SBE Data
Processing use the same .con file.
Verifying Contents of .con File
SEASAVE, our real-time data acquisition and display program, requires a .con
file, which defines the instrument – integrated auxiliary sensors, and channels,
serial numbers, and calibration dates and coefficients for all the sensors
(conductivity, temperature, and pressure as well as auxiliary sensors).
SEASAVE (as well as our data processing software) uses the information in
the .con file to interpret and process the raw data. If the .con file does not
match the actual instrument configuration, the software will not be able to
interpret and process data correctly.
1.
Double click on Seasave.exe.
2.
Click Configure Inputs. On the Instrument Configuration tab, click Open. In
the dialog box, select the .con file and click Open.
3.
The configuration information appears on the Instrument Configuration
tab. Verify that the sensors match those on your 19plus, and that auxiliary
sensors are assigned to the correct channels. Click Modify to bring up a
dialog box (shown below) to change the configuration and/or to view /
modify calibration coefficients.
Channel/Sensor table reflects this choice
(0, 1, 2, 3, or 4). Must agree with 19plus
setup for VoltN= (N= 0, 1, 2, and 3); see
reply from DS. Voltage channel 0 in .con
file corresponds to first external voltage in
data stream, voltage channel 1 to second
external voltage in data stream, etc.
Select strain gauge.
Must agree with 19plus setup (MP for
Profiling mode, MM for Moored
mode); see reply from DS.
Samples to average (samples at 4 Hz) in
Profiling mode. Used to calculate elapsed
time, if time is an output parameter. Must
agree with 19plus setup (NAvg=); see reply
from DS.
Interval between scans in Moored mode.
Used to calculate elapsed time, if time is
an output parameter. Must agree with
19plus setup (SampleInterval=); see
reply from DS.
Select to include time of each scan (seconds
since January 1, 1970 GMT) with data.
• Surface PAR - Select if using with deck
unit connected to Surface PAR sensor.
SEASAVE appends Surface PAR data to
every scan. Adds 2 channels to
Channel/Sensor table. Do not increase
External voltage channels to reflect this;
External voltage channels reflects only
external voltages going directly to 19plus
from auxiliary sensor. See Application
Note 47.
• NMEA position data - Select if using with
deck unit connected to NMEA navigation
device. SEASAVE adds current latitude,
longitude, and universal time code to data
header; appends NMEA data to every
scan; and writes NMEA data to . nav file
every time Ctrl F7 is pressed or Add to
.nav File is clicked.
• NMEA depth data - Select if using with
deck unit connected to NMEA depth
device. SEASAVE appends 3 bytes of
depth data to every scan, after Lat/Lon
data. NMEA depth data can be selected
only if NMEA position data added is
selected.
Shaded sensors
cannot be removed
or changed to
another type of
sensor. All others are
optional.
Click a (non-shaded) sensor and click Select to pick a
different sensor for that channel. Dialog box with list of
sensors appears. Select sensors after number of
voltage channels have been specified above.
4.
New to create new
.con file for this
CTD.
Open to select
different .con file.
Save or Save As to
save current .con
file settings.
Click a sensor and
click Modify to
change calibration
coefficients for that
sensor.
Click Save or Save As to save any changes to the .con file. Click Exit
when done reviewing / modifying the .con file.
62
Section 4: Deploying and Operating SBE 19plus
Acquiring Real-Time Data
Instructions below are for an SBE 19plus with a conventional single-core
armored cable, used without a Sea-Bird Deck Unit. If using the 19plus with
the SBE 33 or 36 Deck Unit or the SEACAT/SEALOGGER RS-232 and
Navigation Interface Box, see the Deck Unit or Interface Box manual.
Note:
The baud rate between the 19plus
and computer (defined in Configure
Inputs, on the Serial Ports tab) must
match the baud rate set in the 19plus
with Baud=.
1.
Wiring - Terminate the single-core armored cable with an RMG-4FS
connector (19plus with standard connectors) or MCIL-4FS (19plus with
optional wet-pluggable connectors). Wire the cable armor to pin 1 (large
pin for 19plus with standard connectors) and the inner conductor to pin 3
(opposite large pin) on the 19plus data I/O connector. On deck, wire:
Slip-ring lead
25-pin serial port
9-pin serial port
from armor
Pin 7
Pin 5
from inner conductor
Pin 3
Pin 2
2.
Double click on Seasave.exe.
3.
Perform any desired setup in the Configure Inputs, Configure Outputs,
and Display menus..
4.
In the Real-Time Data menu, select Start. The dialog box looks like this:
Data Archiving Options:
• Begin archiving data immediately to store raw (frequencies,
A/D counts, and/or voltages) real-time data as soon as Start
button is clicked and communication is established.
• Begin archiving data when ‘Start Archiving’ command is
sent to control when data begins to be written to file. This allows
you to eliminate scans associated with deploying CTD from ship
deck and soaking instrument near surface (alternatively, remove
these scans later in SBE Data Processing). If you make this
selection, when you click Start button and communication is
established, a dialog box with Start Archiving button appears.
Click this button when ready to begin saving scans to file, or
select Start Archiving in Real-Time Data menu.
• Do not archive data for this cast to not save data to a file.
Real-time data will still appear in displays.
Configuration Options: Currently selected instrument configuration
(.con) file is shown, containing information on number and type of
sensors interfacing with 19plus, calibration coefficients, and inclusion
of NMEA and/or Surface PAR data with output from CTD. To select
different .con file or modify input configuration (.con file, serial ports,
water sampler, TCP/IP ports, and/or miscellaneous), click Configure
Inputs. To modify outputs (serial data output, serial ports, shared file
output, mark variables, TCP/IP output, TCP/IP ports, SBE 14 remote
display, header form, and/or diagnostics), click Configure Outputs.
• Timeout in seconds at startup: Time allowed before first data
scan is received from 19plus. SEASAVE will time out and stop
attempting to acquire data if data is not received from 19plus within
this time period.
• Timeout in seconds between scans: Maximum gap allowed
between scans after first data scan is received from 19plus.
SEASAVE will time out and stop attempting to acquire data if data
is not received from 19plus within this time period (for example, if a
shark bites cable and interrupts data acquisition, SEASAVE stops
attempting to acquire data after this gap).
63
Click Select Output Data File
Name. Save Archived Data As
dialog box appears; browse to
desired file location, enter desired
file name, and click Save.
Section 4: Deploying and Operating SBE 19plus
5.
In the Start Real-Time Data Acquisition dialog box, click Start.
A. If you selected Begin archiving data immediately or Begin archiving
data when ‘Start Archiving’ command is sent above, and selected
Prompt for Header Information in the Header Form setup (Configure
Outputs), the Header Information dialog box appears. Fill in the
desired header and click OK.
B. If you selected Check Scan Length in the Options menu, SEASAVE
checks the .con file to verify that the scan length defined by the .con
file matches the 19plus (i.e., number of sensors and inclusion of NMEA
is as defined in the .con file). If a Scan length error appears, verify that:
• You are using the correct .con file.
• The .con file has been updated as necessary if you added or deleted
sensors, added or deleted NMEA or Surface PAR inputs, etc.
C. SEASAVE sends a message: Waiting for data. . . If you have already
started logging data, ignore the message; otherwise, slide the
magnetic switch to the On position or apply external power, as
applicable to your setup of the 19plus. SEASAVE times out if data is
not received within Timeout in seconds at startup.
D. Real-time data then starts appearing in the screen displays.
6.
To stop real-time data acquisition: In the Real-Time Data menu,
select Stop.
7.
Stop logging:
• If IgnoreSwitch=N and AutoRun=N: Put the magnetic switch in the
Off position.
• If IgnoreSwitch=Y and AutoRun=N: Close SEASAVE, then open
SEATERM and send Stop.
• If AutoRun=Y: Remove external power.
Notes:
• If in Moored mode, the 19plus must
be sampling autonomously to use
SEASAVE for real-time data
acquisition. Start sampling by
sending StartNow or StartLater in
SEATERM before starting
acquisition in SEASAVE.
• To prevent problems in the use of
the COM port, click Disconnect in
SEATERM and close SEATERM
before starting real-time acquisition
in SEASAVE.
64
Section 4: Deploying and Operating SBE 19plus
Recovery
WARNING!
If the 19plus stops working while
underwater, is unresponsive to
commands, or shows other signs
of flooding or damage, carefully
secure it away from people until
you have determined that
abnormal internal pressure does
not exist or has been relieved.
Pressure housings may flood under
pressure due to dirty or damaged orings, or other failed seals. When a
sealed pressure housing floods at
great depths and is subsequently
raised to the surface, water may be
trapped at the pressure at which it
entered the housing, presenting a
danger if the housing is opened
before relieving the internal
pressure. Instances of such flooding
are rare. However, a housing that
floods at 5000 meters depth holds
an internal pressure of more than
7000 psia, and has the potential to
eject the end cap with lethal force.
A housing that floods at 50 meters
holds an internal pressure of more
then 85 psia; this force could still
cause injury.
If you suspect the 19plus is flooded,
point the 19plus in a safe direction
away from people, and loosen 1 end
cap bulkhead connector very slowly,
at least 1 turn. This opens an o-ring
seal under the connector. Look for
signs of internal pressure (hissing or
water leak). If internal pressure is
detected, let it bleed off slowly past
the connector o-ring. Then, you can
safely remove the end cap.
Physical Handling
1.
Rinse the instrument and conductivity cell with fresh water.
(See Section 5: Routine Maintenance and Calibration for cell cleaning
and storage.)
2.
If the batteries are exhausted, new batteries must be installed before the
data can be extracted. Stored data will not be lost as a result of exhaustion
or removal of batteries. (See Section 5: Routine Maintenance and
Calibration for replacement of batteries.)
3.
If immediate redeployment is not required, it is best to leave the 19plus
with batteries in place and in a quiescent state (QS). Because the
quiescent current required is only 30 microamps, the batteries can be left
in place without significant loss of capacity. If the 19plus is to be stored
for long periods, replace alkaline batteries yearly to prevent battery
leakage (which could damage the 19plus).
65
Section 4: Deploying and Operating SBE 19plus
Uploading Data
Note:
Data may be uploaded during
deployment or after recovery. If
uploading after recovery, connect the
I/O cable as described in Section 3:
Power and Communications Test.
1.
Double click on SeaTerm.exe. The display shows the main screen.
2.
In the Configure menu, select SBE 19plus. Click on the Upload Settings
tab. The dialog box looks like this:
Defines data upload type when using Upload on
Toolbar or Upload Data in Data menu:
• All as single file – All data uploaded into one file.
• All separated by cast (Profiling mode only) - All
data uploaded. Separate file is written for each
cast, with 3-digit cast identification number (001 to
301) appended to user-selected file name
• By scan number range – SEATERM prompts for
beginning and ending scan (sample) numbers,
and uploads all data within range into one file.
• From a single cast (Profiling mode only) SEATERM prompts for cast number, and uploads
all data from that cast into one file.
• By cast number range (Profiling mode only) SEATERM prompts for beginning and ending cast
numbers, and uploads data within that range.
Separate file is written for each cast, with 3-digit
cast identification number (001 to 301) appended
to user-selected file name.
Note:
Set up Upload Settings, Header
Information, and/or Header Form
(Steps 2 through 4):
• The first time you upload data, and
• If you want to change upload or
header parameters.
Baud rate for uploading
data from 19plus
to computer; same as baud
rate on COM Settings tab.
Make the selection for Upload Settings.
3.
Click on the Header Information tab. The dialog box looks like this:
Defines header
information included with
uploaded data:
• Prompt for header
information – Each
time data is uploaded,
user is prompted to fill
out user-defined
header form.
• Include default header
form in upload file –
User-defined default
header form included in
upload file. User is not
prompted to add any
information when data
is uploaded.
• Don’t include default
header form in upload
file – Header
information not
included in upload file.
Select the desired header information option. Click OK to save
the settings.
66
Section 4: Deploying and Operating SBE 19plus
4.
In the Configure menu, select Header Form to customize the header.
The dialog box looks like this (default prompts are shown):
The entries are free form, 0 to 12 lines long. This dialog box establishes:
• the header prompts that appear for the user to fill in when uploading
data, if Prompt for header information was selected in the
Configuration Options dialog box (Step 3)
• the header included with the uploaded data, if Include default header
form in upload file was selected in the Configuration Options dialog
box (Step 3)
Enter the desired header/header prompts. Click OK.
5.
Click Connect on the Toolbar to begin communications with the 19plus.
The display looks like this:
S>
This shows that correct communications between the computer and 19plus
has been established.
If the system does not respond as shown above:
• Click Connect again.
• Check cabling between the computer and the 19plus.
• Verify the correct instrument was selected and the COM settings
were entered correctly in the Configure menu.
6.
Command the 19plus to stop data logging by the method applicable to
your instrument’s setup:
•
•
Pressing the Enter key and sending Stop, or
Moving the magnetic switch to the Off position (only applicable in
Profiling mode, if IgnoreSwitch=N)
67
Section 4: Deploying and Operating SBE 19plus
7.
Display 19plus status information by clicking Status on the Toolbar.
The display looks like this (if in Profiling mode):
SeacatPlus V 1.5 SERIAL NO. 4000
22 May 2005 14:02:13
vbatt = 9.6, vlith = 8.6, ioper = 61.2 ma, ipump = 25.5 ma,
iext01 = 76.2 ma,
status = not logging
number of scans to average = 1
samples = 5000, free = 376300, casts = 1
mode = profile, minimum cond freq = 3000, pump delay = 60 sec
autorun = no, ignore magnetic switch = no
battery type = ALKALINE, battery cutoff = 7.3 volts
pressure sensor = strain gauge, range = 1000.0
SBE 38 = no, Gas Tension Device = no
Ext Volt 0 = yes, Ext Volt 1 = no, Ext Volt 2 = no, Ext Volt 3 = no
echo commands = yes
output format = converted decimal
output salinity = no, output sound velocity = no
Notes:
To prepare for redeployment:
1. After all data has been uploaded,
send InitLogging. If this
command is not sent, new data
will be stored after the last
recorded sample, preventing use
of the entire memory capacity.
2. Send QS to put the 19plus in
quiescent (sleep) state until ready
to redeploy. Quiescent current
is only 30 microamps, so
the batteries can be left in
place without significant loss
of capacity.
8.
Click Upload on the Toolbar to upload stored data in a form that SeaBird’s data processing software can use. SEATERM responds as follows:
A. SEATERM sends OutputFormat=0 to set the output format to raw
hexadecimal.
B. SEATERM sends the status (DS), header (DH), and calibration
coefficients (DCal) commands, displays the responses, and writes the
commands and responses to the upload file. These commands provide
you with information regarding the number of samples in memory,
mode, header/cast numbers, calibration coefficients, etc.
C. If you selected By scan number range, From a single cast, or By
cast number range in the Configuration Options dialog box
(Configure menu) – a dialog box requests the range or cast number,
as applicable. Enter the desired value(s), and click OK.
D. If you selected Prompt for header information in the
Configuration Options dialog box (Configure menu) – a dialog
box with the header form appears. Enter the desired header
information, and click OK. SEATERM writes the header information
to the upload file.
E. In the Open dialog box, enter the desired upload file name and click
OK. The upload file has a .hex extension.
If you selected All separated by cast or By cast number range,
SEATERM will automatically append the 3-digit cast identification
number to the upload file name (for example, if you specify the
upload file name as test and upload casts 1 and 2, SEATERM will
create test001.hex and test002.hex).
F. SEATERM sends the data upload command (DCx or DDb,e
as applicable).
G. If you selected Prompt for header information in the
Configuration Options dialog box (Configure menu) –
SEATERM repeats Steps D and F for each cast.
H. When the data has been uploaded, SEATERM shows the S> prompt.
9.
Ensure all data has been uploaded from the 19plus by reviewing and
processing the data:
A. Use SEASAVE to display the raw hexadecimal data in engineering
units (see Verifying Contents of .con File and SEASAVE’s
manual/Help files).
B. Use SBE Data Processing to process and plot the data (see
Processing Data Using SBE Data Processing and SBE Data
Processing manual/Help files).
68
Section 4: Deploying and Operating SBE 19plus
Processing Data Using SBE Data Processing
Notes:
• See the SBE Data Processing
manual and/or Help files.
• When we ship a new instrument, we
include a .con file that reflects the
current instrument configuration as
we know it. The .con file is named
with the instrument serial number,
followed with the .con extension. For
example, for an instrument with
serial number 2375, Sea-Bird names
the .con file 2375.con. You may
rename the .con file if desired; this
will not affect the results.
• In the 19plus setup commands,
external voltage numbers 0, 1, 2,
and 3 correspond to wiring of
sensors to a voltage channel on the
end cap (see Dimensions and End
Cap Connectors in Section 2:
Description of SBE 19plus).
However, in the .con file, voltage 0 is
the first external voltage in the data
stream, voltage 1 is the second, etc.
• SEASAVE and SBE Data
Processing use the same .con file.
1.
Convert the .hex (raw data) file (real-time file from SEASAVE or
uploaded from 19plus memory) to a .cnv (engineering units) file in
SBE Data Processing’s Data Conversion module.
2.
Once the data is converted: perform further processing (align, filter,
remove bad data, etc.), calculate derived variables, and plot data using
SBE Data Processing’s other modules.
Verifying Contents of Configuration (.con) File
To convert the .hex (raw data) file, you need a .con file, which defines the
instrument – integrated sensors, and channels, serial numbers, and calibration
dates and coefficients for all sensors (C, T, and P as well as auxiliary sensors).
SBE Data Processing (as well as our real-time data acquisition software) uses
the .con file information to interpret and process the raw data. If the .con file
does not match the actual instrument configuration, the software will be
unable to interpret and process the data correctly.
To view or modify the .con file:
1.
Double click on SBEDataProc.exe.
2.
In the Configure menu, select SBE 19 Seacat plus CTD. The configuration
dialog box appears. In the configuration dialog box, click Open.
69
Section 4: Deploying and Operating SBE 19plus
3.
In the Open dialog box, select the appropriate .con file and click Open.
Verify that the sensors match those on your 19plus, auxiliary sensors are
assigned to the correct voltage channels, and calibration coefficients for all
sensors are up-to-date.
Channel/Sensor table reflects this choice
(0, 1, 2, 3, or 4). Must agree with 19plus
setup for VoltN= (N= 0, 1, 2, and 3); see
reply from DS. Voltage channel 0 in .con
file corresponds to first external voltage in
data stream, voltage channel 1 to second
external voltage in data stream, etc.
Select strain gauge.
Must agree with 19plus setup (MP for
Profiling mode, MM for Moored
mode); see reply from DS.
Samples to average (samples at 4 Hz) in
Profiling mode. Used to calculate elapsed
time, if time is an output parameter. Must
agree with 19plus setup (NAvg=); see reply
from DS.
Interval between scans in Moored mode.
Used to calculate elapsed time, if time is
an output parameter. Must agree with
19plus setup (SampleInterval=); see
reply from DS.
Select to include time of each scan (seconds
since January 1, 1970 GMT) with data.
• Surface PAR - Select if using with deck
unit connected to Surface PAR sensor.
SEASAVE appends Surface PAR data to
every scan. Adds 2 channels to
Channel/Sensor table. Do not increase
External voltage channels to reflect this;
External voltage channels reflects only
external voltages going directly to 19plus
from auxiliary sensor. See Application
Note 47.
• NMEA position data - Select if using with
deck unit connected to NMEA navigation
device. SEASAVE adds current latitude,
longitude, and universal time code to data
header; appends NMEA data to every
scan; and writes NMEA data to . nav file
every time Ctrl F7 is pressed or Add to
.nav File is clicked.
• NMEA depth data - Select if using with
deck unit connected to NMEA depth
device. SEASAVE appends 3 bytes of
depth data to every scan, after Lat/Lon
data. NMEA depth data can be selected
only if NMEA position data added is
selected.
Shaded sensors
cannot be removed
or changed to
another type of
sensor. All others are
optional.
Click a (non-shaded) sensor and click Select to pick a
different sensor for that channel. Dialog box with list of
sensors appears. Select sensors after number of
voltage channels have been specified above.
4.
New to create new
.con file for this
CTD.
Open to select
different .con file.
Save or Save As to
save current .con
file settings.
Click a sensor and
click Modify to
change calibration
coefficients for that
sensor.
Click Save or Save As to save any changes to the .con file. Click Exit when
done reviewing / modifying the .con file.
70
Section 4: Deploying and Operating SBE 19plus
Editing Raw Data File
Sometimes users want to edit the raw .hex data file before beginning
processing, to remove data at the beginning of the file corresponding to
instrument soak time, to remove blocks of bad data, to edit the header, or to add
explanatory notes about the cast. Editing the raw .hex file can corrupt the
data, making it impossible to perform further processing using Sea-Bird
software. Sea-Bird strongly recommends that you first convert the data to a
.cnv file (using the Data Conversion module in SBE Data Processing), and then
use other SBE Data Processing modules to edit the .cnv file as desired.
Note:
Although we provide this
technique for editing a raw .hex
file, Sea-Bird’s strong
recommendation, as described
above, is to always convert the
raw data file and then edit the
converted file.
The procedure for editing a .hex data file described below has been found to
work correctly on computers running Windows 98, 2000, and NT. If the
editing is not performed using this technique, SBE Data Processing may
reject the edited data file and give you an error message.
1.
Make a back-up copy of your .hex data file before you begin.
2.
Run WordPad.
3.
In the File menu, select Open. The Open dialog box appears. For Files of
type, select All Documents (*.*). Browse to the desired .hex data file and
click Open.
4.
Edit the file as desired, inserting any new header lines after the System
Upload Time line. Note that all header lines must begin with an asterisk
(*), and *END* indicates the end of the header. An example is shown
below (for an SBE 21), with the added lines in bold:
* Sea-Bird SBE 21 Data File:
* FileName = C:\Odis\SAT2-ODIS\oct14-19\oc15_99.hex
* Software Version Seasave Win32 v1.10
* Temperature SN = 2366
* Conductivity SN = 2366
* System UpLoad Time = Oct 15 1999 10:57:19
* Testing adding header lines
* Must start with an asterisk
* Place anywhere between System Upload Time & END of header
* NMEA Latitude = 30 59.70 N
* NMEA Longitude = 081 37.93 W
* NMEA UTC (Time) = Oct 15 1999 10:57:19
* Store Lat/Lon Data = Append to Every Scan and Append to .NAV
File When <Ctrl F7> is Pressed
** Ship:
Sea-Bird
** Cruise:
Sea-Bird Header Test
** Station:
** Latitude:
** Longitude:
*END*
5.
In the File menu, select Save (not Save As). If you are running
Windows 2000, the following message displays:
You are about to save the document in a Text-Only
format, which will remove all formatting. Are you sure
you want to do this?
Ignore the message and click Yes.
6.
In the File menu, select Exit.
71
Section 5: Routine Maintenance and Calibration
Section 5: Routine Maintenance
and Calibration
This section reviews:
• corrosion precautions
• connector mating and maintenance
• plumbing maintenance
• battery replacement/recharging
• conductivity cell storage and cleaning
• pressure sensor maintenance
• replacement of optional Anti-Foulant Devices
• sensor calibration
The accuracy of the SBE 19plus is sustained by the care and calibration of the
sensors and by establishing proper handling practices.
Corrosion Precautions
Rinse the SBE 19plus with fresh water after use and prior to storage.
For both the plastic and titanium housing, all exposed metal is titanium
(the plastic housing has a titanium end cap). No corrosion precautions are
required, but avoid direct electrical connection of the titanium to dissimilar
metal hardware.
Connector Mating and Maintenance
Note:
See Application Note 57: Connector
Care and Cable Installation.
CAUTION:
Do not use WD-40 or other
petroleum-based lubricants, as they
will damage the connectors.
Clean and inspect connectors, cables, and dummy plugs before every
deployment and as part of your yearly equipment maintenance. Inspect
connectors that are unmated for signs of corrosion product around the pins,
and for cuts, nicks or other flaws that may compromise the seal.
When remating:
1. Lightly lubricate the inside of the dummy plug/cable connector with
silicone grease (DC-4 or equivalent).
2. Standard Connector - Install the plug/cable connector, aligning the
raised bump on the side of the plug/cable connector with the large pin
(pin 1 - ground) on the 19plus. Remove any trapped air by burping or
gently squeezing the plug/connector near the top and moving your fingers
toward the end cap. OR
MCBH Connector – Install the plug/cable connector, aligning the pins.
3. Place the locking sleeve over the plug/cable connector. Tighten the
locking sleeve finger tight only. Do not overtighten the locking sleeve
and do not use a wrench or pliers.
Verify that a cable or dummy plug is installed for each connector on the
system before deployment.
72
Section 5: Routine Maintenance and Calibration
Plumbing Maintenance
Y-fitting with
air release
(bleed) valve
For SBE 19plus with plumbing configured for vertical orientation Periodically clean the air release valve with a 0.4 mm (0.016 inches) diameter
wire (you can use #26 AWG wire), and blow through it to ensure it is open.
A clogged air release valve can trap air, preventing the pump from
Air release valve detail
functioning properly; this will affect the data quality.
0.5 mm (0.02 in.)
73
Section 5: Routine Maintenance and Calibration
Replacing / Recharging Batteries
Note:
If changing from alkaline to Ni-Cad
or NiMH batteries, or vice versa,
send BatteryType= to indicate the
new battery type.
Leave the batteries in place when storing the SBE 19plus to prevent depletion
of the back-up lithium batteries by the real-time clock. Even exhausted main
batteries will power the clock (30 microamperes) almost indefinitely. If the
19plus is to be stored for long periods, replace alkaline batteries yearly to
prevent battery leakage (which could damage the 19plus).
Replacing Alkaline Batteries
Alkaline D-cell
(MN1300, LR20)
The 19plus uses alkaline D-cells (Duracell MN1300, LR20), dropped into the
battery compartment.
1.
Remove the battery end cap (end cap without connectors):
A. Wipe the outside of the end cap and housing dry, being careful to
remove any water at the seam between them.
B. Unthread the end cap by rotating counter-clockwise (use a wrench on
the white plastic bar if necessary).
C. Remove any water from the O-ring mating surfaces inside the
housing with a lint-free cloth or tissue.
D. Put the end cap aside, being careful to protect the O-ring from
damage or contamination.
2.
Remove the battery cover plate from the housing:
A. Remove the three Phillips-head screws and washers from the battery
cover plate inside the housing.
B. The battery cover plate will pop out. Put it aside.
3.
Turn the 19plus over and remove the batteries.
4.
Install the new batteries, with the + terminals against the flat battery
contacts and the - terminals against the spring contacts.
5.
Reinstall the battery cover plate in the housing:
A. Align the battery cover plate with the housing. The posts inside the
housing are not placed symmetrically, so the cover plate fits into the
housing only one way. Looking at the cover plate, note that one screw
hole is closer to the edge than the others, corresponding to the post
that is closest to the housing.
B. Reinstall the three Phillips-head screws and washers, while pushing
hard on the battery cover plate to depress the spring contacts at the
bottom of the battery compartment. The screws must be fully
tightened, or battery power to the circuitry will be intermittent.
6.
Check the battery voltage at BAT + and BAT - on the battery cover plate.
It should be approximately 13.5 volts.
7.
Reinstall the battery end cap:
A. Remove any water from the O-rings and mating surfaces with a lintfree cloth or tissue. Inspect the O-rings and mating surfaces for dirt,
nicks, and cuts. Clean or replace as necessary. Apply a light coat
of o-ring lubricant (Parker Super O Lube) to O-rings and
mating surfaces.
B. Carefully fit the end cap into the housing and rethread the end cap
into place. Use a wrench on the white plastic bar to ensure the
end cap is tightly secured.
Unthread cap by rotating
counter-clockwise
Remove Phillips-head
screws and washers
Verify that the magnetic switch on the conductivity cell guard is in the Off
position, so the 19plus will be in quiescent (sleep) state.
74
Section 5: Routine Maintenance and Calibration
Recharging Optional Nickel Metal Hydride Batteries
See the NiMH Battery Charger and Battery Pack manual for complete
details on charging, error messages, battery specifications, etc.
1.
Unthread cap
by rotating
counterclockwise
Remove the battery end cap (end cap without connectors):
A. Wipe the outside of the end cap and housing dry, being careful to
remove any water at the seam between them.
B. Unthread the end cap by rotating counter-clockwise (use a wrench on
the white plastic bar if necessary).
C. Remove any water from the O-ring mating surfaces inside the
housing with a lint-free cloth or tissue.
D. Put the end cap aside, being careful to protect the O-ring from
damage or contamination.
Note:
If desired, you can recharge the NiMH battery pack while it is in
the housing. Skip Steps 2 and 4 if recharging in the housing.
2.
Screw
9-cell
Battery pack
Battery pack –
12-cell shown,
9-cell (used with
19plus) is similar
3.
Charger
cable
Battery
charger
Power
switch
WARNING!
Do not disconnect the battery while the
Charger Active lamp is on. Doing so
may cause a small spark.
Remove the battery pack from the housing:
A. The protective plastic plate over the battery cover plate prevents you
from completely removing the cap screws that connect the battery
pack to the 19plus battery posts in one step. Each of the screws is
12 mm (1/2 inch) long, but the clearance between the cover plate and
plastic plate is only 6 mm (1/4 inch). Unscrew each of the three cap
screws just until they hit the bottom of the protective plastic plate.
The battery pack will walk out of the housing approximately 6 mm
(1/4 inch) because of the spring contacts at the bottom of the battery
compartment. Unscrew the cap screws again. The battery pack
will walk out of the housing again, and should now be disconnected
from the battery posts.
B. Pull on the cord to remove the battery pack from the housing.
Recharge the batteries:
A. Plug the battery charger into a suitable power source and turn on
power to the charger.
B. Connect the charger cable to the battery pack and charger.
The LED should show READY, and display the battery type and
measured voltage.
C. Press the Discharge button. The LED should show DISCHARGE.
This starts the discharge cycle, which discharges any remaining
battery capacity. Repeatedly charging without discharging may
damage the battery pack. The Discharge cycle takes approximately
110 minutes. When discharging is complete, the LED should
show EMPTY.
D. Press the Charge button. The LED should show Fast Charge
(it may also show WARM-UP CHARGE, REFILL CHARGE, and/or
TOP OFF during the charge cycle). The Charge cycle takes
approximately 2 hours. When charging is complete, the LED should
show BATTERY FULL.
E. Turn off power to the charger.
F. Disconnect the battery pack from the charger and the charger from
the power source.
75
Section 5: Routine Maintenance and Calibration
4.
Reinstall the battery pack in the housing:
A. Align the battery pack with the housing. The posts inside the housing
are not placed symmetrically, so the battery pack fits into the housing
only one way. Looking at the bottom of the battery pack, note that
one tube is closer to the edge than the others, corresponding to the
post that is closest to the housing.
B. Reinstall the three cap screws until they are snug against the top plate.
While pushing hard on the protective plastic plate to depress the
spring contacts at the bottom of the compartment, continue to tighten
the cap screws. Repeat until all three cap screws are tightened and the
battery pack cannot be pushed further into the housing. The screws
must be fully tightened, or battery power to the circuitry will
be intermittent.
5.
Reinstall the battery end cap:
A. Remove any water from the O-rings and mating surfaces with a lintfree cloth or tissue. Inspect the O-rings and mating surfaces for dirt,
nicks, and cuts. Clean or replace as necessary. Apply a light coat
of O-ring lubricant (Parker Super O Lube) to O-rings and
mating surfaces.
B. Carefully fit the end cap into the housing and rethread the end cap
into place. Use a wrench on the white plastic bar to ensure the
end cap is tightly secured.
Note:
The NiMH battery pack fits tightly in
the housing. When placing a battery
pack in the housing, align it carefully
and slowly insert it straight into the
housing. If not careful, the battery pack
shrink wrap can be torn.
Verify that the magnetic switch is Off, so the SBE 19plus will be in quiescent
(sleep) state.
76
Section 5: Routine Maintenance and Calibration
Recharging Optional Nickel-Cadmium Batteries
1.
Remove the battery end cap (end cap without connectors):
A. Wipe the outside of the end cap and housing dry, being careful to
remove any water at the seam between them.
B. Unthread the end cap by rotating counter-clockwise (use a wrench on
the white plastic bar if necessary).
C. Remove any water from the O-ring mating surfaces inside the
housing with a lint-free cloth or tissue.
D. Put the end cap aside, being careful to protect the O-ring from
damage or contamination.
2.
Remove the battery pack from the housing:
A. Remove the three Phillips-head machine screws and washers from the
battery cover plate inside the housing.
B. Pull on the plastic tab on the center cord to remove the battery pack
from the housing.
Unthread cap
by rotating
counterclockwise
Screw
(typical)
Tab on
cord
Pin jacks
3.
Recharge the batteries:
A. Connect the battery charger leads to the battery cover pin jacks,
matching black-to-black and red-to-red (the pin jacks are different
sizes to prevent cross-wiring).
B. Plug the battery charger into a suitable AC mains power source.
C. The red Charge LED on the charger comes on. Recharging takes
approximately 15 hours. When recharging is complete, the yellow
Trickle LED comes on, indicating the charger is providing a
maintenance level charge.
D. Disconnect the battery pack from the charger and the charger from
the power source.
E. Check the voltage at BAT + and BAT – on the battery cover.
It should be approximately 10.8 volts.
4.
Reinstall the battery pack in the housing:
A. Align the battery pack with the housing. The posts inside the housing
are not placed symmetrically, so the battery pack fits into the housing
only one way. Looking at the battery bottom cover, note that one
circular cutout is closer to the edge than the others, corresponding to
the post that is closest to the housing.
B. Reinstall the three Phillips-head screws and washers, while pushing
hard on the top of the battery pack to depress the spring contacts at
the bottom of the compartment. The screws must be fully tightened,
or the battery power to the circuitry will be intermittent.
5.
Reinstall the battery end cap:
A. Remove any water from the O-rings and mating surfaces with a lintfree cloth or tissue. Inspect the O-rings and mating surfaces for dirt,
nicks, and cuts. Clean or replace as necessary. Apply a light coat
of O-ring lubricant (Parker Super O Lube) to O-rings and
mating surfaces.
B. Carefully fit the end cap into the housing and rethread the end cap
into place. Use a wrench on the white plastic bar to ensure the
end cap is tightly secured.
CAUTION:
Do not recharge the Ni-Cad
battery pack while it is in the
housing. If you do so, you may
damage the 19plus electronics.
Verify that the magnetic switch on the conductivity cell guard is in the Off
position, so the 19plus will be in quiescent (sleep) state.
77
Section 5: Routine Maintenance and Calibration
Conductivity Cell Maintenance
CAUTIONS:
• Do not put a brush or any object
inside the conductivity cell to
dry it or clean it. Touching and
bending the electrodes can
change the calibration. Large
bends and movement of the
electrodes can damage the cell.
• Do not store the 19plus with
water in the conductivity cell.
Freezing temperatures (for
example, in Arctic environments or
during air shipment) can break the
cell if it is full of water.
Barbed caps for cleaning
and storage
The SBE 19plus’ conductivity cell is shipped dry to prevent freezing
in shipping. Refer to Application Note 2D: Instructions for Care and Cleaning
of Conductivity Cells for conductivity cell cleaning and storage procedures
and materials.
The 19plus is shipped with a kit for cell filling and storage. The kit includes:
• Syringe and tubing assembly, and
• Two anti-foulant device caps with hose barbs. These caps are used during
cleaning and storage only if you installed anti-foul fittings for a moored
application, because the tubing cannot attach to an anti-foulant device cap
that is not barbed. The cap used during deployment on one or both ends of
the conductivity cell may not be barbed, depending on your system
configuration (see Installing Anti-Foul Fittings for Moored Applications
in Section 4: Deploying and Operating SBE 19plus). As needed, remove
the installed, non-barbed anti-foulant device cap(s) and replace them with
the caps with hose bars for cleaning and storage only. Remember to
reinstall the original cap(s) before deployment. Deploying a 19plus with
barbed anti-foulant device cap(s) in place of the installed caps is likely
to produce undesirable results in your data.
See Replacing Anti-Foulant Devices for safety precautions when handling
the AF24173 Anti-Foulant Devices
Pressure Sensor Maintenance
Pressure
sensor
port
CAUTION:
Do not put a brush or any object in
the pressure port. Doing so may
damage or break the pressure sensor.
The pressure port plug has a small vent hole to allow hydrostatic pressure to be
transmitted to the pressure sensor inside the instrument, while providing
protection for the pressure sensor, keeping most particles and debris out of the
pressure port.
Periodically (approximately once a year) inspect the pressure port to remove
any particles, debris, etc:
1.
Unscrew the pressure port plug from the pressure port.
2.
Rinse the pressure port with warm, de-ionized water to remove any
particles, debris, etc.
3.
Replace the pressure port plug.
Pump Maintenance
See Application Note 75: Maintenance of SBE 5T, 5P, and 5M Pumps.
78
Section 5: Routine Maintenance and Calibration
Replacing Anti-Foulant Devices (SBE 16plus, SBE 19plus)
The SBE 16plus and 19plus (moored option) have an anti-foulant device cup
and cap on each end of the conductivity cell. A new SBE 16plus (or moored
option 19plus) is shipped with an Anti-Foulant Device and a protective plug
pre-installed in each cup.
AF24173
Anti-Foulant
Device
Wearing rubber or latex gloves, follow this procedure to replace each AntiFoulant Device (two):
WARNING!
AF24173 Anti-Foulant Devices
contain bis(tributyltin) oxide.
Handle the devices only with
rubber or latex gloves. Wear eye
protection. Wash with soap and
water after handling.
1.
Remove the protective plug;
2.
Unscrew the cap with a 5/8-inch socket wrench;
3.
Remove the old Anti-Foulant Device. If the old Anti-Foulant Device is
difficult to remove:
Read precautionary information on
product label (see Appendix V)
before proceeding.
It is a violation of US Federal Law
to use this product in a manner
inconsistent with its labeling.
•
Use needle-nose pliers and carefully break up material;
•
If necessary, remove the conductivity cell guard to provide
easier access;
4.
Place the new Anti-Foulant Device in the cup;
5.
Rethread the cap onto the cup. Do not over tighten;
6.
Replace the protective plug if not ready to redeploy.
CAUTION:
One of the anti-foulant device cups is
attached to the guard and connected
to the conductivity cell. Removing the
guard without disconnecting the
cup from the guard will break the
cell. If the guard must be removed:
Conductivity
cell guard
1. Remove the two screws connecting
the anti-foulant device cup to the
guard;
Unscrew
cap
Remove
plug
2. Remove the four Phillips-head
screws connecting the guard to the
housing and sensor end cap;
3. Gently lift the guard away.
79
Section 5: Routine Maintenance and Calibration
Sensor Calibration
Note:
After recalibration, Sea-Bird enters
the new calibration coefficients in the
19plus EEPROM, and ships the
instrument back to the user with
Calibration Certificates showing the
new coefficients. The user must enter
the coefficients in the instrument
configuration (.con) file in the
Configure menu in SEASAVE or
SBE Data Processing.
Sea-Bird sensors are calibrated by subjecting them to known physical
conditions and measuring the sensor responses. Coefficients are then
computed, which may be used with appropriate algorithms to obtain
engineering units. The conductivity, temperature, and pressure sensors on the
SBE 19plus are supplied fully calibrated, with coefficients stored in EEPROM
in the 19plus and printed on their respective Calibration Certificates.
We recommend that the 19plus be returned to Sea-Bird for calibration.
Conductivity Sensor
The conductivity sensor incorporates a fixed precision resistor in parallel with
the cell. When the cell is dry and in air, the sensor’s electrical circuitry outputs
a frequency representative of the fixed resistor. This frequency is recorded on
the Calibration Certificate and should remain stable (within 1 Hz) over time.
The primary mechanism for calibration drift in conductivity sensors is the
fouling of the cell by chemical or biological deposits. Fouling changes the cell
geometry, resulting in a shift in cell constant.
Accordingly, the most important determinant of long-term sensor accuracy is
the cleanliness of the cell. We recommend that the conductivity sensors be
calibrated before and after deployment, but particularly when the cell has been
exposed to contamination by oil slicks or biological material.
Temperature Sensor
The primary source of temperature sensor calibration drift is the aging of the
thermistor element. Sensor drift will usually be a few thousandths of a degree
during the first year, and less in subsequent intervals. Sensor drift is not
substantially dependent upon the environmental conditions of use, and —
unlike platinum or copper elements — the thermistor is insensitive
to shock.
80
Section 5: Routine Maintenance and Calibration
Pressure Sensor
The SBE 19plus includes a strain-gauge pressure sensor. This sensor is
capable of meeting the 19plus error specification with some allowance for
aging and ambient-temperature induced drift.
Pressure sensors show most of their error as a linear offset from zero. A
technique is provided below for making small corrections to the pressure sensor
calibration using the offset (POffset=) calibration coefficient term by comparing
19plus pressure output to readings from a barometer.
Note:
The pressure sensor is an absolute
sensor, so its raw output includes the
effect of atmospheric pressure
14.7 psi). As shown on the
Calibration Sheet, Sea-Bird’s
calibration (and resulting calibration
coefficients) is in terms of psia.
However, when outputting pressure
in engineering units, the 19plus
outputs pressure relative to the ocean
surface (i.e., at the surface the output
pressure is 0 decibars).
The 19plus uses the following
equation to convert psia to decibars:
pressure (db) =
[pressure (psia) - 14.7] * 0.689476
Allow the 19plus to equilibrate (with power on) in a reasonably constant
temperature environment for at least 5 hours before starting. Pressure sensors
exhibit a transient change in their output in response to changes in their
environmental temperature. Sea-Bird instruments are constructed to minimize
this by thermally decoupling the sensor from the body of the instrument.
However, there is still some residual effect; allowing the 19plus to equilibrate
before starting will provide the most accurate calibration correction.
1.
Place the 19plus in the orientation it will have when deployed.
2.
In SEATERM:
A. Set the pressure offset to 0.0 (POffset=0).
B. Send TP to measure the 19plus pressure 100 times and transmit
converted data in engineering units (decibars).
3.
Compare the 19plus output to the reading from a good barometer at the
same elevation as the 19plus pressure sensor.
Calculate offset = barometer reading – 19plus reading
4.
Enter the calculated offset (positive or negative) in two places:
• In the 19plus EEPROM, using POffset= in SEATERM, and
• In the configuration (.con) file, using SEASAVE or
SBE Data Processing.
Offset Correction Example
Absolute pressure measured by a barometer is 1010.50 mbar. Pressure displayed from 19plus is -2.5 dbars.
Convert barometer reading to dbars using the relationship: mbar * 0.01 = dbar
Barometer reading = 1010.50 mbar * 0.01 = 10.1050 dbar
The 19plus’ internal calculations and our processing software output gage pressure, using an assumed value of
14.7 psi for atmospheric pressure. Convert 19plus reading from gage to absolute by adding 14.7 psia to the
19plus output:
-2.5 dbars + (14.7 psi * 0.689476 dbar/psia) = -2.5 + 10.13 = 7.635 dbars
Offset = 10.1050 – 7.635 = + 2.47 dbars
Enter offset in 19plus and in .con file.
For demanding applications, or where the sensor’s air ambient pressure
response has changed significantly, calibration using a dead-weight
generator is recommended. The end cap’s 7/16-20 straight thread permits
mechanical connection to the pressure source. Use a fitting that has an O-ring
tapered seal, such as Swagelok-200-1-4ST, which conforms to MS16142 boss.
81
Section 6: Troubleshooting
Section 6: Troubleshooting
This section reviews common problems in operating the SBE 19plus, and
provides the most common causes and solutions.
Problem 1: Unable to Communicate
The S> prompt indicates that communications between the SBE 19plus and
computer have been established. Before proceeding with troubleshooting,
attempt to establish communications again by clicking Connect on
SEATERM’s toolbar or hitting the Enter key several times.
Cause/Solution 1: The I/O cable connection may be loose. Check the cabling
between the 19plus and computer for a loose connection.
Cause/Solution 2: The instrument type and/or its communication settings may
not have been entered correctly in SEATERM. Select the SBE 19plus in the
Configure menu and verify the settings in the Configuration Options dialog
box. The settings should match those on the instrument Configuration Sheet.
Cause/Solution 3: The I/O cable may not be the correct one. The I/O cable
supplied with the 19plus permits connection to standard 9-pin RS-232
interfaces. See Dimensions and End Cap Connectors in Section 2: Description
of SBE 19plus for cable pinouts.
Problem 2: No Data Recorded
Cause/Solution 1: The memory may be full; once the memory is full, no
further data is recorded. Verify that the memory is not full using DS
(free = 0 or 1 if memory is full). Sea-Bird recommends that you upload all
previous data before beginning another deployment. Once the data is
uploaded, use InitLogging to reset the memory. After the memory is reset,
DS will show samples = 0.
82
Section 6: Troubleshooting
Problem 3: Nonsense or Unreasonable Data
The symptom of this problem is a data file that contains nonsense values (for
example, 9999.999) or unreasonable values (for example, values that are
outside the expected range of the data).
Note:
Each 19plus is shipped with a
configuration (.con) file that matches
the configuration of the instrument
(number and type of auxiliary
sensors, etc.) and includes the
instrument calibration coefficients.
Cause/Solution 1: A data file with nonsense values may be caused by
incorrect instrument configuration:
• Bad data may be caused by incorrect configuration in the 19plus. Send DS
to verify the 19plus setup matches the instrument Configuration Sheet
(correct pressure sensor, voltage sensors assigned to correct channels, etc).
• Bad data may be caused by incorrect configuration in the instrument .con
file. Verify the settings in the instrument .con file match the instrument
Configuration Sheet.
Cause/Solution 2: A data file with unreasonable (i.e., out of the expected
range) values for temperature, conductivity, etc. may be caused by incorrect
calibration coefficients:
• If you uploaded data in engineering units (OutputFormat=1 or 3) –
Bad data may be caused by incorrect calibration coefficients in the 19plus.
Send DCal to verify the calibration coefficients in the 19plus match the
instrument Calibration Certificates. Note that calibration coefficients do
not affect the raw data stored in 19plus memory. If you have not yet
overwritten the memory with new data, you can correct the coefficients
and then upload the data again.
• If you are viewing real-time data in SEASAVE or uploaded data in raw
hexadecimal (OutputFormat=0) and are processing the data in
SEASAVE or SBE Data Processing - Bad data may be caused by
incorrect calibration coefficients in the instrument .con file.
Verify the calibration coefficients in the .con file match the instrument
Calibration Certificates.
Problem 4: Program Corrupted
Note:
Using the reset switch does not affect
the 19plus memory - data in memory
and user-programmable parameter
values are unaffected.
Cause/Solution 1: In rare cases, the program that controls the 19plus
microprocessor can be corrupted by a severe static shock or other problem.
This program can be initialized by using the reset switch. Proceed as follows
to initialize:
1. Open the battery end cap and remove the batteries
(see Replacing /Recharging Batteries in Section 5: Routine Maintenance
and Calibration).
2. There is a small, pushbutton switch on the battery compartment bulkhead,
which is visible after the batteries are removed. The switch is used to
disconnect the internal lithium batteries from the electronics. Push the
switch in for 1 second.
3. Reinstall or replace the batteries, and close the battery end cap.
4. Establish communications with the 19plus (see Section 3: Power and
Communications Test). Send DS to verify that the date and time and
sample number are correct.
83
Glossary
Glossary
Batteries – Nine alkaline D-cells (Duracell MN1300, LR20) standard.
Available with optional rechargeable NiMH or Ni-Cad battery pack.
Fouling – Biological growth in the conductivity cell during deployment.
Typically a concern when SBE 19plus is used in a moored application;
install moored mode conversion kit with AF24173 Anti-Foulant Devices for
these applications.
PCB – Printed Circuit Board.
SBE Data Processing – Sea-Bird’s Win 2000/XP data processing
software, which calculates and plots temperature, conductivity, and pressure,
data from auxiliary sensors, and derives variables such as salinity and sound
velocity.
Scan – One data sample containing temperature, conductivity, pressure, date
and time (Moored mode only), and optional auxiliary inputs.
SEACAT – High-accuracy conductivity, temperature, and pressure recorder.
The SEACAT is available as the SBE 16plus (moored applications, RS-232 or
-485 interface), SBE 16plus-IM (moored applications, inductive modem
interface) and SBE 19plus (profiling or moored applications).
A plus version of the SBE 21 (thermosalinograph) is under development.
SEASAVE V7 – Sea-Bird’s Windows 2000/XP software used to acquire,
convert, and display real-time or archived raw data.
SEASOFT-Win32– Sea-Bird’s complete Windows 2000/XP software
package, which includes software for communication, real-time data
acquisition, and data analysis and display. SEASOFT-Win32 includes
SEATERM, SeatermAF, SEASAVE V7, SBE Data Processing.
SEATERM – Sea-Bird’s Win 95/98/NT/2000/XP terminal program used to
communicate with the SBE 19plus.
SeatermAF – Sea-Bird’s Win 95/98/NT/2000/XP terminal program used to
communicate with the SBE 19plus when it is used with a water sampler
operated autonomously (SBE 32 Carousel Water Sampler with Auto Fire
Module (AFM) or SBE 55 ECO Water Sampler). See the AFM manual or
SBE 55 manual.
TCXO – Temperature Compensated Crystal Oscillator.
Triton X-100 – Reagent grade non-ionic surfactant (detergent), used for
cleaning the conductivity cell. Triton can be ordered from Sea-Bird,
but should also be available locally from chemical supply or laboratory
products companies. Triton is manufactured by Mallinckrodt Baker
(see http://www.mallbaker.com/changecountry.asp?back=/Default.asp
for local distributors)
84
Appendix I: Functional Description and Circuitry
Appendix I: Functional Description
and Circuitry
Sensors
The SBE19plus embodies the same sensor elements (three-electrode, twoterminal, borosilicate glass cell, and pressure-protected thermistor) previously
employed in Sea-Bird’s modular SBE 3 and SBE 4 sensors and in the original
SEACAT design. The19plus differs from the SBE 19 in that it uses three
independent channels to digitize temperature, conductivity, and pressure
concurrently. Multiplexing is not used for these channels.
The pressure sensor is a Druck strain-gauge sensor.
Sensor Interface
Temperature is acquired by applying an AC excitation to a bridge circuit
containing an ultra-stable aged thermistor with a drift rate of less than 0.002 ºC
per year. The other elements in the bridge are VISHAY precision resistors.
A 24-bit A/D converter digitizes the output of the bridge. AC excitation and
ratiometric comparison avoids errors caused by parasitic thermocouples, offset
voltages, leakage currents, and reference errors.
Conductivity is acquired using an ultra-precision Wein-Bridge oscillator to
generate a frequency output in response to changes in conductivity.
Strain-gauge pressure is acquired by applying an AC excitation to the pressure
bridge. A 24-bit A/D converter digitizes the output of the bridge. AC
excitation and ratiometric comparison avoids errors caused by parasitic
thermocouples, offset voltages, leakage currents, and reference errors.
A silicon diode embedded in the pressure bridge is used to measure the
temperature of the pressure bridge. This temperature is used to perform offset
and span corrections on the measured pressure signal.
The four external 0 to 5 volt DC voltage channels are processed by differential
amplifiers with an input resistance of 50K ohms and are digitized with a 14-bit
A/D converter.
Real-Time Clock
To minimize power and improve clock accuracy, a temperature-compensated
crystal oscillator (TCXO) is used as the real-time-clock frequency source.
The TCXO is accurate to ± 1 minute per year (0 ºC to 40 ºC).
85
Appendix I: Functional Description and Circuitry
Battery Wiring
SBE 19plus standard main battery is a series connection of D-cells that drop
into the battery compartment as a cluster of end-to-end stacks, three batteries
each (standard 9-cell battery pack has three stacks). The positive battery
connections are contact areas on double-thick printed circuit disks that form
the internal bulkhead and battery retainer plates. Battery negative contacts are
heavy beryllium-copper springs. The three cell stacks are aligned by plastic
insulated aluminum spacers which also serve as electrical interconnects.
The battery-to-circuit card connection is made by means of a Molex-type
3-pin pc board connector (JP3 on the power PCB).
The Power PCB contains three series-connected Panasonic BR-2/3A lithium
cells (non-hazardous) which are diode OR’d with the main battery (and
external power source, if used). The lithium supply is capable of supporting all
19plus functions and serves to permit orderly shutdown in the event of failed
or exhausted main batteries. The main batteries can be changed without
disturbing memory or the real-time clock. If the back-up lithium battery
voltage (Vlith in the DS response) falls below 7 volts, replace the
back-up batteries.
86
Appendix II: Electronics Disassembly/Reassembly
Appendix II:
Electronics Disassembly/Reassembly
CAUTION:
Use caution during disassembly and
reassembly to avoid breaking the
conductivity cell.
Disassembly
Do not remove screw
attaching guard to
sensor end cap
(2 places)
Remove screw
(2 places)
1.
As a precaution, upload any data in memory before beginning.
2.
Remove the two Phillips-head screws holding the conductivity cell guard
to the housing. Do not remove the two screws holding the conductivity
cell guard to the sensor end cap.
3.
Remove the Phillips-head screw holding the sensor end cap to
the housing on the side opposite the conductivity cell guard.
4.
Remove the sensor end cap (with attached conductivity cell and
cell guard) and electronics:
A. Wipe the outside of the sensor end cap and housing dry, being careful
to remove any water at the seam between them.
B. Slide the end cap and attached electronics out of the housing.
C. The electronics are electrically connected to the battery compartment
bulkhead with a Molex connector. Disconnect the Molex connector.
D. Remove any water from the O-rings and mating surfaces inside the
housing with a lint-free cloth or tissue.
E. Be careful to protect the O-rings from damage or contamination.
1.
Reinstall the sensor end cap, conductivity cell and guard, and electronics:
A. Remove any water from the O-rings and mating surfaces in the
housing with a lint-free cloth or tissue. Inspect the O-rings and
mating surfaces for dirt, nicks, and cuts. Clean or replace as
necessary. Apply a light coat of O-ring lubricant (Parker Super
O Lube) to the O-rings and mating surfaces.
B. Plug the Molex connector onto the pins on the battery compartment
bulkhead. Verify the connector holes and pins are properly aligned.
C. Carefully fit the end cap and electronics into the housing until the
O-rings are fully seated.
2.
Reinstall the three screws to secure the end cap.
3.
Reset the date and time (MMDDYY= and HHMMSS=) and initialize
logging (InitLogging) before redeploying. No other parameters should
have been affected by the electronics disassembly (send DS
to verify).
Remove screw
Reassembly
Note:
Before delivery, a desiccant package
is inserted in the electronics
chamber, and the chamber is filled
with dry Argon gas. These measures
help prevent condensation. If the
electronics are exposed to the
atmosphere, dry gas backfill with
Argon and replace the desiccant
package. See Application Note 71:
Desiccant Use and Regeneration
(drying) for desiccant information.
Battery replacement does not affect
desiccation of the electronics, as no
significant gas exchange is possible
unless the electronics PCBs are
actually removed from the housing.
87
Appendix III: Command Summary
Appendix III: Command Summary
Note:
See Command
Descriptions in
Section 4: Deploying
and Operating
SBE 19plus for
detailed information
and examples.
CATEGORY
COMMAND
DESCRIPTION
Status
DS
Display status and setup parameters.
Set real-time clock month, day, year.
Follow with HHMMSS= or it will not set date.
Set real-time clock day, month, year.
Follow with HHMMSS= or it will not set date.
Set real-time clock hour, minute, second.
x= baud rate (1200, 2400, 4800, 9600, 19200,
or 38400). Default 9600.
x=Y: Echo characters as you type.
x=N: Do not.
x=ALKALINE: Alkaline (or optional lithium)
batteries.
x=NICAD: Nickel-Cadmium batteries.
x=NIMH: Nickel Metal Hydride batteries.
After all previous data has been uploaded, send this
before starting to log to make entire memory
available for recording. If not sent, data stored after
last sample. Equivalent to SampleNumber=0.
x= sample number for first sample when logging
begins. After all previous data has been uploaded, set
to 0 before starting to log to make entire memory
available for recording. If not reset to 0, data stored
after last sample. Equivalent to InitLogging.
x= header and cast number for first cast when
logging begins.
Map bad blocks and erase FLASH memory,
which destroys all data in 19plus.
Enter quiescent (sleep) state. Main power turned off,
but data logging and memory retention unaffected.
x=1: Strain-gauge pressure sensor.
x=Y: Enable external voltage 0.
x=N: Do not.
x=Y: Enable external voltage 1.
x=N: Do not.
x=Y: Enable external voltage 2.
x=N: Do not.
x=Y: Enable external voltage 3.
x=N: Do not.
x=Y: Configuration includes ECO-FL fluorometer
with Bio-Wiper.
x=N: Does not.
x=0: output raw frequencies and voltages in Hex
(required if using SEASAVE).
x=1: output converted data in Hex.
x=2: output raw frequencies and voltages in decimal.
x=3: output converted data in decimal.
x=4: output pressure and scan number in Hex.
x=Y: Calculate and output salinity (psu). Only
applies if OutputFormat=3.
x=N: Do not.
x=Y: Calculate and output sound velocity (m/sec).
Only applies if OutputFormat=3.
x=N: Do not.
x=Y: Calculate and output density sigma-t
MMDDYY=mmddyy
DDMMYY=ddmmyy
HHMMSS=hhmmss
Baud=x
Echo=x
BatteryType=x
General
Setup
InitLogging
SampleNumber=x
HeaderNumber=x
FlashInit
QS
PType=x
Volt0=x
Volt1=x
Sensor Setup
Volt2=x
Volt3=x
Biowiper=x
OutputFormat=x
Output
Format Setup
OutputSal=x
OutputSV=x
OutputUCSD=x
(kg/m3), battery voltage, and operating
current (mA) with data polled while logging
if OutputFormat=3.
x=N: Do not.
88
Appendix III: Command Summary
CATEGORY
COMMAND
DESCRIPTION
MP
Set to Profiling mode.
x= minimum conductivity frequency (Hz) to enable
pump turn-on.
x= time (seconds) to wait after minimum
conductivity frequency is reached before turning
pump on. Default 60 seconds.
x=Y: Ignore magnetic switch position for starting
or stopping logging. Use StartNow, StartLater, and
Stop to control logging.
x=N: Do not ignore magnetic switch position.
x=Y: Automatically wake up and start logging when
external power is applied; stop logging when external
power is removed. Magnetic switch position has no
effect on logging.
x=N: Do not automatically start logging when
external power is applied.
x= number of samples to average. 19plus samples at
4 Hz and averages NAvg samples. Default =1.
Set to Moored mode.
x=Y: Output real-time data.
x=N: Do not.
x= time (seconds) to wait after switching on external
voltage before sampling (0-32,000 seconds).
Default 0 seconds.
x=0: No pump.
x=1: Run pump for 0.5 seconds before each sample.
x=2: Run pump during each sample.
x= interval (seconds) between samples (10 - 14,400).
x= number of measurements to take and average
every SampleInterval seconds. Default = 1.
Start logging now.
Delayed logging start: month, day, year.
Must follow with StartHHMMSS=.
Delayed logging start: day, month, year.
Must follow with StartHHMMSS=.
MinCondFreq=x
PumpDelay=x
Profiling
Mode Setup
(commands do
not affect
Moored mode
operation)
IgnoreSwitch=x
AutoRun=x
NAvg=x
MM
MooredTxRealTime
=x
Moored Mode
Setup
(commands do
not affect
Profiling mode
operation)
DelayBeforeSampling
=x
MooredPumpMode
=x
SampleInterval=x
NCycles=x
Logging
StartNow
StartMMDDYY
=mmddyy
StartDDMMYY
=ddmmyy
StartHHMMSS
=hhmmss
StartLater
Stop
Note:
Use Upload on the
Toolbar or Upload Data
in the Data menu to
upload data that will be
processed by SBE Data
Processing. Manually
entering the data upload
command does not
produce data with the
required header
information for processing
by SBE Data Processing.
Data Upload
Stop logging
before
uploading.
DDb,e
DCx
DHb,e
SL
SLT
Polled
Sampling
TS
TSS
TSSOn
89
Delayed logging start: hour, minute, second.
Start logging at delayed logging start date and time.
Stop logging or stop waiting to start logging. Press
Enter key to get S> prompt before entering Stop.
Must stop logging before uploading data. If in
Profiling mode and IgnoreSwitch=N, can also turn
magnetic switch Off to stop logging.
Upload data from scan b to scan e.
Profiling mode only.
Upload data from cast x.
Upload header b to header e.
Output last sample from buffer and leave power on.
Output last sample from buffer, then take new sample
and store data in buffer. Leave power on.
Take sample, store data in buffer, output data, and
leave power on.
Take sample, store in buffer and FLASH
memory, output data, and turn power off.
Take sample, store in buffer and FLASH
memory, output data, and leave power on.
Appendix III: Command Summary
CATEGORY
Testing
Takes and
outputs
100 samples
for each test.
Press Esc key
or Stop on
Toolbar to
stop test.
COMMAND
DESCRIPTION
TT
TC
TP
TV
TTR
TCR
TPR
Measure temperature, output converted data.
Measure conductivity, output converted data.
Measure pressure, output converted data.
Measure four external voltage channels, output converted data.
Measure temperature, output raw data
Measure conductivity, output raw data.
Measure pressure, output raw data.
Measure main battery voltage, lithium battery voltage, external
current, pressure temperature, and 4 external voltage channels,
output raw data.
Turn pump on for testing purposes.
Turn pump off for testing purposes.
Display calibration coefficients; all coefficients and dates listed
below are included in display (as applicable). Use individual
commands below to modify a particular coefficient or date.
S=Temperature calibration date.
F=Temperature A0.
F=Temperature A1.
F=Temperature A2.
F=Temperature A3.
F=Temperature offset correction.
S=Conductivity calibration date.
F=Conductivity G.
F=Conductivity H.
F=Conductivity I.
F=Conductivity J.
F=Conductivity pcor.
F=Conductivity tcor.
F=Conductivity slope correction.
S=Pressure calibration date.
F=Pressure sensor full scale range (psia).
F=Pressure offset correction (decibars).
F=Strain-gauge pressure A0.
F=Strain-gauge pressure A1.
F=Strain-gauge pressure A2.
F=Strain-gauge pressure temperature A0.
F=Strain-gauge pressure temperature A1.
F=Strain-gauge pressure temperature A2.
F=Strain-gauge pressure temperature compensation ptca0.
F=Strain-gauge pressure temperature compensation ptca1.
F=Strain-gauge pressure temperature compensation ptca2.
F=Strain-gauge pressure temperature compensation ptcb0.
F=Strain-gauge pressure temperature compensation ptcb1.
F=Strain-gauge pressure temperature compensation ptcb2.
TVR
PumpOn
PumpOff
DCal
Coefficients
(F=floating
point number;
S=string with
no spaces)
Dates shown
are when
calibrations
were
performed.
Calibration
coefficients
are initially
factory-set and
should agree
with
Calibration
Certificates
shipped with
19plus.
TCalDate=S
TAO=F
TA1=F
TA2=F
TA3=F
TOffset=F
CCalDate=S
CG=F
CH=F
CI=F
CJ=F
CPCor=F
CTCor=F
CSlope=F
PCalDate=S
PRange=F
POffset=F
PA0=F
PA1=F
PA2=F
PTempA0=F
PTempA1=F
PTempA2=F
PTCA0=F
PTCA1=F
PTCA2=F
PTCB0=F
PTCB1=F
PTCB2=F
90
Appendix IV: AF24173 Anti-Foulant Device
Appendix IV: AF24173 Anti-Foulant Device
AF24173 Anti-Foulant Devices supplied for user replacement are supplied in
polyethylene bags displaying the following label:
AF24173 ANTI-FOULANT DEVICE
FOR USE ONLY IN SEA-BIRD ELECTRONICS' CONDUCTIVITY SENSORS TO CONTROL THE GROWTH OF AQUATIC ORGANISMS
WITHIN ELECTRONIC CONDUCTIVITY SENSORS.
ACTIVE INGREDIENT:
Bis(tributyltin) oxide…………..………………………….....
OTHER INGREDIENTS: ……………………………….....
Total……………………………………………………….....
53.0%
47.0%
100.0%
DANGER
See the complete label within the Conductivity Instrument Manual for Additional Precautionary Statements and Information on the Handling, Storage, and
Disposal of this Product.
Net Contents: Two anti-foulant devices
Sea-Bird Electronics, Inc.
1808 - 136th Place Northeast
Bellevue, WA 98005
EPA Registration No. 74489-1
EPA Establishment No. 74489-WA-1
91
Appendix IV: AF24173 Anti-Foulant Device
AF24173 Anti-Foulant Device
FOR USE ONLY IN SEA-BIRD ELECTRONICS’ CONDUCTIVITY SENSORS TO CONTROL
THE GROWTH OF AQUATIC ORGANISMS WITHIN ELECTRONIC CONDUCTIVITY
SENSORS.
ACTIVE INGREDIENT:
Bis(tributyltin) oxide…………..…………………………..... 53.0%
OTHER INGREDIENTS: ………………………………..... 47.0%
Total………………………………………………………..... 100.0%
DANGER
See Precautionary Statements for additional information.
FIRST AID
If on skin or
clothing
If swallowed
If in eyes
•
•
•
•
•
•
•
•
•
•
Take off contaminated clothing.
Rinse skin immediately with plenty of water for15-20 minutes.
Call a poison control center or doctor for treatment advice.
Call poison control center or doctor immediately for treatment advice.
Have person drink several glasses of water.
Do not induce vomiting.
Do not give anything by mouth to an unconscious person.
Hold eye open and rinse slowly and gently with water for 15-20
minutes.
Remove contact lenses, if present, after the first 5 minutes, then continue
rinsing eye.
Call a poison control center or doctor for treatment advice.
HOT LINE NUMBER
Note to Physician Probable mucosal damage may contraindicate the use of gastric lavage.
Have the product container or label with you when calling a poison control center or doctor, or
going for treatment. For further information call National Pesticide Telecommunications
Network (NPTN) at 1-800-858-7378.
Net Contents: Two anti-foulant devices
Sea-Bird Electronics, Inc.
1808 - 136th Place Northeast
Bellevue, WA 98005
EPA Registration No. 74489-1
EPA Establishment No. 74489-WA-1
92
Appendix IV: AF24173 Anti-Foulant Device
PRECAUTIONARY STATEMENTS
HAZARD TO HUMANS AND DOMESTIC ANIMALS
DANGER
Corrosive - Causes irreversible eye damage and skin burns. Harmful if swallowed. Harmful if
absorbed through the skin or inhaled. Prolonged or frequently repeated contact may cause allergic
reactions in some individuals. Wash thoroughly with soap and water after handling.
PERSONAL PROTECTIVE EQUIPMENT
USER SAFETY RECOMMENDATIONS
Users should:
• Remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on
clean clothing.
• Wear protective gloves (rubber or latex), goggles or other eye protection, and clothing to
minimize contact.
• Follow manufacturer’s instructions for cleaning and maintaining PPE. If no such instructions
for washables, use detergent and hot water. Keep and wash PPE separately from other
laundry.
• Wash hands with soap and water before eating, drinking, chewing gum, using tobacco or
using the toilet.
ENVIRONMENTAL HAZARDS
Do not discharge effluent containing this product into lakes, streams, ponds, estuaries, oceans, or other
waters unless in accordance with the requirements of a National Pollutant Discharge Elimination
System (NPDES) permit and the permitting authority has been notified in writing prior to discharge.
Do not discharge effluent containing this product to sewer systems without previously notifying the
local sewage treatment plant authority. For guidance contact your State Water Board or Regional
Office of EPA. This material is toxic to fish. Do not contaminate water when cleaning equipment or
disposing of equipment washwaters.
PHYSICAL OR CHEMICAL HAZARDS
Do not use or store near heat or open flame. Avoid contact with acids and oxidizers.
DIRECTIONS FOR USE
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. For use
only in Sea-Bird Electronics’ conductivity sensors. Read installation instructions in the applicable
Conductivity Instrument Manual.
93
Appendix IV: AF24173 Anti-Foulant Device
STORAGE AND DISPOSAL
PESTICIDE STORAGE: Store in original container in a cool, dry place. Prevent exposure to
heat or flame. Do not store near acids or oxidizers. Keep container tightly closed.
PESTICIDE SPILL PROCEDURE: In case of a spill, absorb spills with absorbent material. Put
saturated absorbent material to a labeled container for treatment or disposal.
PESTICIDE DISPOSAL: Pesticide that cannot be used according to label instructions must be
disposed of according to Federal or approved State procedures under Subtitle C of the Resource
Conservation and Recovery Act.
CONTAINER DISPOSAL: Dispose of in a sanitary landfill or by other approved State and
Local procedures.
Sea-Bird Electronics/label revised 01-31-05
94
Appendix V: Replacement Parts
Appendix V: Replacement Parts
Part
Number
Part
Application Description
Quantity
in 19plus
Alkaline D-cell batteries,
Duracell MN 1300 (LR20)
Power 19plus
9
41124B
Battery cover plate
Retains alkaline batteries
1
801511
NiMH battery pack
Optional rechargeable 9-cell battery pack
-
22018
90504
NiMH battery pack charger
For NiMH batteries
-
801641
Ni-Cad battery pack
Optional rechargeable 9-cell battery pack
-
90226
Ni-Cad battery charger
For Ni-Cad batteries
-
30411
Triton X-100
Octyl Phenol Ethoxylate – Reagent grade non-ionic cleaning solution
for conductivity cell (supplied in 100% strength; dilute as directed)
1
50288
Moored Mode Conversion Kit
Anti-foulant device fittings for moored applications (order AF24173
Anti-Foulant Devices separately)
-
801542
AF24173 Anti-Foulant Device
bis(tributyltin) oxide device inserted into anti-foulant device cup, for
moored applications
1 (set of 2)
801225*
4-pin RMG-4FS to 9-pin DB-9S I/O
cable, 2.4 m (8 ft)
From 19plus to computer
1
171888
25-pin DB-25S to 9-pin DB-9P
cable adapter
For use with computer with DB-25 connector
1
17080*
2-pin RMG-2FS to 2-pin RMG-2FS
cable, 0.4 m (1.2 ft)
From 19plus to pump
1
17044.1*
2-pin RMG-2FS dummy plug with
locking sleeve
For when pump not used
1
17045.1*
3-pin RMG-3FS dummy plug and
locking sleeve
For when optional PAR connector not used
-
17046.1*
4-pin RMG-4FS dummy plug with
locking sleeve
For when I/O cable not used
1
17047.1 *
6-pin AG-206 dummy plug with
locking sleeve
For when auxiliary differential input sensors not used
2
801374
4-pin MCIL-4FS (wet-pluggable) to
9-pin DB-9S I/O cable, 2.4 m (8 ft)
From 19plus to computer
1
171502
2-pin MCIL-2FS to 2-pin MCIL-2FS
(wet-pluggable) cable, 0.4 m (1.2 ft)
From 19plus to pump
1
171497.1
2-pin MCDC-2-F wet-pluggable dummy
For when pump not used
plug with locking sleeve
1
171500.1
3-pin MCDC-3-F wet-pluggable dummy
For when optional PAR connector not used
plug and locking sleeve
-
171398.1
4-pin MCDC-4-F wet-pluggable dummy
For when I/O cable not used
plug with locking sleeve
1
171498.1
6-pin MCDC-6-F wet-pluggable dummy
For when auxiliary differential input sensors not used
plug with locking sleeve
2
50275
Spare magnetic switch assembly
For starting/stopping logging in Profiling mode
-
90087
Pump air bleed valve assembly
Y fitting, air bleed valve, cable ties, vinyl tubing
1
30388
Tygon tube, ½ inch ID x ¾ inch OD
Main plumbing tubing
-
30579
Tygon tube, 3/8 inch ID x ½ inch OD
13 mm (0.5 inch) long pieces used on conductivity cell exhaust cap
used with optional Anti-Foulant Devices and for SBE 43 intake and
exhaust to fit to main plumbing
-
22009
Panasonic BR-2/3A lithium batteries
Back-up lithium cells on Power PCB
3
* For standard bulkhead connectors
continued on next page
95
Appendix V: Replacement Parts
continued from previous page
Part Number
Part
Application Description
Quantity
in 19plus
O-rings and hardware, including:
•
60021
Spare battery end cap hardware
and o-rings
30145 Screw, 6-32 x 1/2 Phillips-head, stainless steel (secures battery
cover plate to battery posts)
• 30242 Washer, #6 flat, stainless steel (for screw 30145)
• 30816 Parker 2-234E603-70 (battery end cap to housing piston seal,
sensor end cap to housing seals)
• 30090 Parker 2-153N674-70 (battery end cap to housing face seal)
-
Assorted o-rings, including:
•
•
•
•
50274
Spare o-ring kit
•
•
•
•
30816 Parker 2-234E603-70 (battery end cap to housing piston seal, sensor
end cap to housing seals)
30090 Parker 2-153N674-70 (battery end cap to housing face seal)
30507 Parker 2-206N674-70 (each end of conductivity cell)
30802 Parker 2-110DUR070, ethylene (titanium conductivity cell tray face
seal, groove surface)
30809 Morrison seal, .047” hole, NIT (temperature probe Morrison seal)
30072 Parker 2-017N674-70 (bulkhead connector seal)
30070 Parker 3-904N674-70 (pressure sensor mounting seal)
30087 Parker 2-232N674-70 (buffer for top retainer for PCB
sandwich assembly)
30801 Parker 5-374E603-70 (base of battery bulkhead seal)
-
•
Assorted hardware, including:
•
•
•
•
•
•
•
50273
Spare hardware kit
•
•
•
•
•
•
•
•
•
•
30163 Screw, 8-32 x 1 Phillips-head, stainless steel (for magnetic switch)
30145 Screw, 6-32 x 1/2 Phillips-head, stainless steel (secures battery
cover plate to battery posts)
30242 Washer, #6 flat, stainless steel (for 30145)
30414 Washer, #12, internal tooth (secures battery bulkhead retainer)
30954 Screw 4-40 x 3/16 Phillips-head, stainless steel (securing screw for
PCB retainer rod)
31119 Screw 6-32 x 5/8 Truss Head (secures battery bulkhead retainer to
bulkhead bottom plate)
30176 Screw, 10-24 x 3/4, Phillips-head, stainless steel (secures Celcon
threaded ring inside titanium battery end cap)
30249 Washer #10, Flat, stainless steel (used with 30176)
30447 Bolt, ¼-20 x 1 ¼ Hex, titanium (secures lift eye to battery end cap)
31089 Screw, 10-32 x 1/2 flat Phillips-head, titanium (secures sensor end
cap to housing - side opposite conductivity cell guard)
31090 Screw, 10-32 x 5/8 flat Phillips-head, titanium (secures conductivity
cell guard to housing)
31118 Screw, 10-32 x 3/8 Phillips-head, titanium (secures conductivity
cell guard to sensor end cap)
30875 Bolt ¼-20 x 5/8 Hex, titanium (secures connector guard to sensor
end cap)
30633 Washer, ¼” split ring lock, titanium (for 30875)
30919 Screw, 6-32 x 3/8 flat slotted, titanium (secures anti-foulant device
cup to conductivity cell guard)
31066 Screw, 8-32 x ¾ socket, titanium (secures conductivity cell and TC
duct to sensor end cap)
31225 Bolt, ¼-20 x 1¼ Hex, titanium (mount 19plus to cage)
31138 Bolt, ¼-20 x 3/4 Hex, stainless steel (mount cross bars to cage)
-
•
Includes o-rings, hardware, bulkhead connectors, dummy plugs, etc.:
•
•
•
•
•
•
50276
Seaspares kit,
standard connectors
•
•
•
•
•
•
•
•
•
•
50087 Conductivity cell filling and storage kit
50273 Spare hardware kit (see above)
50274 Spare o-ring kit (see above)
50275 Spare magnetic switch assembly
41124B Battery cover plate
801225 Data I/O cable, 4-pin RMG-4FS to 9-pin DB -9S cable,
2.4 m (8 ft) long
17044.1 2-pin RMG-2FS dummy plug with locking sleeve
17046.1 4-pin RMG-4FS dummy plug with locking sleeve
17047.1 6-pin AG-206 dummy plug with locking sleeve
17652 2-pin XSG-2-BCL-HP-SS bulkhead connector
17654 4-pin XSG-4-BCL-HP-SS bulkhead connector
17628 6-pin AG-306-HP-SS bulkhead connector
30388 Vinyl tube, ¾” x ½” (main sensor plumbing tubing)
30409 Teflon tape (for insides of hose clamps)
30411 Triton X100 (for cell cleaning)
30457 Parker O-Lube (o-ring lubricant)
continued on next page
96
-
Appendix V: Replacement Parts
continued from previous page
Part Number
Part
Application Description
Quantity
in 19plus
Includes o-rings, hardware, bulkhead connectors, dummy plugs, etc.:
•
•
•
•
•
•
50301
Seaspares kit,
wet-pluggable connectors
•
•
•
•
•
•
•
•
•
•
•
•
50087 Conductivity cell filling and storage kit
50273 Spare hardware kit (see above)
50274 Spare o-ring kit (see above)
50275 Spare magnetic switch
41124B Battery cover plate
801374 Data I/O cable, 4-pin MCIL-4FS (wet-pluggable connector) to
9-pin DB-9S I/O cable, 2.4 m (8 ft) long
171192 Locking sleeve
171497 2-pin MCDC-2-F wet-pluggable dummy plug
171398 4-pin MCDC-4-F wet-pluggable dummy plug
171498 6-pin MCDC-6-F wet-pluggable dummy plug
172019 2-pin MCBH-2MP(WB), TI ½-20 bulkhead connector
172021 4-pin MCBH-4MP(WB), TI ½-20 bulkhead connector
172022 6-pin MCBH-6MP(WB), TI ½-20 bulkhead connector
171888 Cable adapter, DB-25F to DB-9M
30388 Vinyl tube, ¾” x ½” (main sensor plumbing tubing)
30409 Teflon tape (for insides of hose clamps)
30411 Triton X100 (for cell cleaning)
30457 Parker O-Lube (o-ring lubricant)
97
-
Index
Index
.
D
.con file · 41, 50, 60, 62, 69, 79
Data bits · 18
Data I/O · 18
Data output format · 51
Data processing · 69
Data storage · 11, 18
Deployment
installation · 61
moored mode setup · 58
optimizing data quality · 56
setup · 60
Description · 7
Dimensions · 13
A
About Sea-Bird · 5
Anti-foul fittings · 58
Anti-Foulant Devices · 8, 90
replacing · 78
Auxiliary sensors · 19
B
Batteries · 11, 14, 60
alkaline · 73
Ni-Cad · 76
NiMH · 74
recharging · 74, 76
replacing · 73
Battery endurance · 14
Baud rate · 18, 34, 63
E
Editing data files · 71
Electronics disassembly/reassembly · 86
End cap · 13, 72, 73
External power · See Power, external
F
C
Format
data output · 51
Functional description · 84
Cable length · 34
Calibration · 11, 79
Circuitry · 84
Cleaning · 72, 77
Clock · 11
Command summary · 87
Commands
Bio-Wiper · 41
calibration coefficients · 49
data upload · 47
descriptions · 36
general setup · 39
logging · 45
moored mode setup · 44
output format · 42
polled sampling · 48
profiling mode setup · 43
sensor setup · 41
status · 37
testing · 48
voltage sensor · 41
Communication defaults · 26
Conductivity sensor
cleaning · 77
storing · 77
Configuration file · 41, 50, 60, 62, 69, 79
Configuration options · 19
Connectors · 13, 72
Corrosion precautions · 72
G
Glossary · 83
L
Limited liability statement · 2
Logging operation · 45
M
Magnetic reed switch · 18
Maintenance · 72
Memory · 11
Modes · See Sampling modes
Moored mode · 30, 32, 58
P
Parity · 18
Parts
replacement · 94
Plumbing · 19, 72
Power · 11, 14
external · 16
Power endurance · 14
Pressure sensor
maintenance · 77
Processing data · 69
Profiling mode · 29, 31, 56
Pump · 19, 31
maintenance · 77
moored mode · 32
profiling mode · 31
98
Index
Q
T
Quick start · 5
Test
power and communications · 23
setup · 23
Timeout description · 36
Triton · 83
Troubleshooting · 81
R
Real-time data acquisition · 62
Real-time setup
baud rate · 34
cable length · 34
Recovery
physical handling · 65
uploading data · 66
Replacement parts · 94
Rinsing · 77
U
Unpacking SBE 19plus · 6
Uploading data · 66
S
Sampling modes · 28
moored · 30, 32, 58
profiling · 29, 31, 56
SBE Data Processing · 10, 23, 68, 69
SEASAVE · 10, 23, 62, 68
SEASOFT · 10, 23
SEATERM · 10, 23, 24, 66
main screen · 24
toolbar buttons · 25
Sensors · 11
Software · 10, 23
Specifications · 11
Storage · 77
System description · 7
99